GMC · 1982-1993
Sonoma — first generation (1982–1993)
sonoma · s-15
139 option rows 139 RPO codes 12 model years
96% Factory-verified
- ✓ Factory-verified · 133
- ● Confirmed · 0
- ◑ Single-source · 6
- ⚠ Disputed · 0
Applicable options
Documented RPO codes
Model year
| Code | Option | Years | Notes & factory source | Confidence |
|---|---|---|---|---|
| Engines | ||||
| L38 | Engine, 2.5L L4, electronic fuel injection | 1991–1993 | the kit pages print L38 for the 2.5L L4 where the earlier books print LN8; the 1991–1993 kit pages are Chevrolet pages; Sonoma years: Wikipedia's S-series engine table 1991–1993; shared S-series code; 1991–1993 rests on the Chevrolet-only S-10 books, so the row is single-source GM Heritage factory kit — 1991 Chevrolet S 10, p.9. GM Heritage factory kit — 1992 Chevrolet S 10, p.16. GM Heritage factory kit — 1993 Chevrolet S 10, p.6. | Single-source |
| LB4 | Engine, 4.3L V6, electronic fuel injection | 1988–1993 | 1988–1990 from the joint S-10/S-15 pages; the 1991–1993 kit pages are Chevrolet pages; Sonoma years: Wikipedia's S-series engine table 1988–1993; Wikipedia names the 1991 Syclone's turbocharged 4.3L V6 LB4; shared S-series code; 1991–1993 rests on the Chevrolet-only S-10 books, so the row is single-source GM Heritage factory kit — 1988 Chevrolet S 10, p.30. GM Heritage factory kit — 1989 Chevrolet S 10, p.22. GM Heritage factory kit — 1990 Chevrolet S 10, p.30. GM Heritage factory kit — 1991 Chevrolet S 10, p.9. GM Heritage factory kit — 1992 Chevrolet S 10, p.16. GM Heritage factory kit — 1993 Chevrolet S 10, p.6. | Single-source |
| LL2 | Engine, 2.8L V6, electronic fuel injection | 1986–1993 | 1986–1990 from the joint S-10/S-15 pages; the 1991–1993 kit pages are Chevrolet pages; Sonoma years: Wikipedia's S-series engine table 1986–1993; shared S-series code; 1991–1993 rests on the Chevrolet-only S-10 books, so the row is single-source GM Heritage factory kit — 1986 Chevrolet S 10, p.12. GM Heritage factory kit — 1987 Chevrolet S 10, p.20. GM Heritage factory kit — 1988 Chevrolet S 10, p.30. GM Heritage factory kit — 1989 Chevrolet S 10, p.22. GM Heritage factory kit — 1990 Chevrolet S 10, p.11. GM Heritage factory kit — 1991 Chevrolet S 10, p.9. GM Heritage factory kit — 1992 Chevrolet S 10, p.16. GM Heritage factory kit — 1993 Chevrolet S 10, p.6. | Single-source |
| LN8 | Engine, 2.5L L4, electronic fuel injection | 1985–1990 | the later books print L38 for the 2.5L L4 (see L38); shared S-series code; cited from the joint S-10/S-15 pages of the S-10 kits GM Heritage factory kit — 1985 Chevrolet S 10, p.20. GM Heritage factory kit — 1986 Chevrolet S 10, p.12. GM Heritage factory kit — 1987 Chevrolet S 10, p.20. GM Heritage factory kit — 1988 Chevrolet S 10, p.30. GM Heritage factory kit — 1989 Chevrolet S 10, p.22. GM Heritage factory kit — 1990 Chevrolet S 10, p.20. | Factory-verified |
| LQ2 | Engine, 2.0L L4, 2 barrel | 1983–1984 | 1984 from the kit's LQ2 engine page, whose applications line is illegible; Wikipedia's S-series engine table dates LQ2 1983–1984; shared S-series code; cited from the joint S-10/S-15 pages of the S-10 kits GM Heritage factory kit — 1983 Chevrolet S 10, p.38. GM Heritage factory kit — 1984 Chevrolet S 10, p.44. | Factory-verified |
| LQ7 | Engine, 2.2L L4, diesel | 1984 | requires B3J diesel equipment; shared S-series code; cited from the joint S-10/S-15 pages of the S-10 kits GM Heritage factory kit — 1984 Chevrolet S 10, p.8. | Factory-verified |
| LR1 | Engine, 1.9L L4, 2 barrel | 1982–1985 | the 1982 page prints LRI; 1982 from the 1982 kit, a Chevrolet book with no S-15 page, and 1984 from the kit's LR1 engine page; Wikipedia names LR1 as the base engine of the first S-series pickups and dates it 1982–1985; shared S-series code; 1983–1985 cited from the joint S-10/S-15 pages of the S-10 kits; 1982 rests on the Chevrolet-only S-10 books, so the row is single-source GM Heritage factory kit — 1982 Chevrolet S 10, p.5. GM Heritage factory kit — 1983 Chevrolet S 10, p.33. GM Heritage factory kit — 1984 Chevrolet S 10, p.41. GM Heritage factory kit — 1985 Chevrolet S 10, p.20. | Single-source |
| LR2 | Engine, 2.8L V6, 2 barrel | 1982–1985 | 1982 from the 1982 kit, a Chevrolet book with no S-15 page; Wikipedia's S-series engine table dates LR2 1982–1985; shared S-series code; 1983–1985 cited from the joint S-10/S-15 pages of the S-10 kits; 1982 rests on the Chevrolet-only S-10 books, so the row is single-source GM Heritage factory kit — 1982 Chevrolet S 10, p.5. GM Heritage factory kit — 1983 Chevrolet S 10, p.38. GM Heritage factory kit — 1984 Chevrolet S 10, p.8. GM Heritage factory kit — 1985 Chevrolet S 10, p.16. | Single-source |
| L35 | Engine, 4.3L V6, CPI | 1992–1993 | Wikipedia names the L35 W-code engine in some 1992 and 1993 Sonomas and in the 1992 Sonoma GT, and its S-series engine table dates it 1992–1993; no S-10 or S-15 pickup page in the repository shows it for these years | Single-source |
| Transmissions | ||||
| MM4 | Transmission, manual, 4 speed | 1983–1987 | shared S-series code; cited from the joint S-10/S-15 pages of the S-10 kits GM Heritage factory kit — 1983 Chevrolet S 10, p.37. GM Heritage factory kit — 1984 Chevrolet S 10, p.8. GM Heritage factory kit — 1985 Chevrolet S 10, p.16. GM Heritage factory kit — 1986 Chevrolet S 10, p.8. GM Heritage factory kit — 1987 Chevrolet S 10, p.16. | Factory-verified |
| MM5 | Transmission, manual, 5 speed, overdrive | 1983–1990 | shared S-series code; cited from the joint S-10/S-15 pages of the S-10 kits GM Heritage factory kit — 1983 Chevrolet S 10, p.33. GM Heritage factory kit — 1984 Chevrolet S 10, p.8. GM Heritage factory kit — 1985 Chevrolet S 10, p.16. GM Heritage factory kit — 1986 Chevrolet S 10, p.8. GM Heritage factory kit — 1987 Chevrolet S 10, p.16. GM Heritage factory kit — 1988 Chevrolet S 10, p.66. GM Heritage factory kit — 1989 Chevrolet S 10, p.25. GM Heritage factory kit — 1990 Chevrolet S 10, p.11. | Factory-verified |
| MX0 | Transmission, 4 speed automatic, overdrive | 1983–1990 | the 1983–1990 pages print MXO; shared S-series code; cited from the joint S-10/S-15 pages of the S-10 kits GM Heritage factory kit — 1983 Chevrolet S 10, p.33. GM Heritage factory kit — 1984 Chevrolet S 10, p.8. GM Heritage factory kit — 1985 Chevrolet S 10, p.16. GM Heritage factory kit — 1986 Chevrolet S 10, p.8. GM Heritage factory kit — 1987 Chevrolet S 10, p.16. GM Heritage factory kit — 1988 Chevrolet S 10, p.30. GM Heritage factory kit — 1989 Chevrolet S 10, p.18. GM Heritage factory kit — 1990 Chevrolet S 10, p.11. | Factory-verified |
| MX1 | Transmission, 3 speed automatic | 1983–1984, 1987 | shared S-series code; cited from the joint S-10/S-15 pages of the S-10 kits GM Heritage factory kit — 1983 Chevrolet S 10, p.33. GM Heritage factory kit — 1984 Chevrolet S 10, p.9. GM Heritage factory kit — 1987 Chevrolet S 10, p.20. | Factory-verified |
| Axles | ||||
| G80 | Axle, rear, locking differential | 1983–1990 | the 1986–1987, 1990 pages print G8O; shared S-series code; cited from the joint S-10/S-15 pages of the S-10 kits GM Heritage factory kit — 1983 Chevrolet S 10, p.33. GM Heritage factory kit — 1984 Chevrolet S 10, p.14. GM Heritage factory kit — 1985 Chevrolet S 10, p.21. GM Heritage factory kit — 1986 Chevrolet S 10, p.13. GM Heritage factory kit — 1987 Chevrolet S 10, p.20. GM Heritage factory kit — 1988 Chevrolet S 10, p.30. GM Heritage factory kit — 1989 Chevrolet S 10, p.22. GM Heritage factory kit — 1990 Chevrolet S 10, p.20. | Factory-verified |
| GQ1 | Axle, rear, standard ratio | 1983–1989 | the power team charts print GQ1 in the standard ratio column beside the optional ratio codes; 1989 from the joint data book's weight page; shared S-series code; cited from the joint S-10/S-15 pages of the S-10 kits GM Heritage factory kit — 1983 Chevrolet S 10, p.37. GM Heritage factory kit — 1984 Chevrolet S 10, p.8. GM Heritage factory kit — 1985 Chevrolet S 10, p.16. GM Heritage factory kit — 1986 Chevrolet S 10, p.8. GM Heritage factory kit — 1987 Chevrolet S 10, p.16. GM Heritage factory kit — 1988 Chevrolet S 10, p.80. GM Heritage factory kit — 1989 Chevrolet S 10, p.20. | Factory-verified |
| GT4 | Axle, rear, 3.73 ratio | 1983–1988 | shared S-series code; cited from the joint S-10/S-15 pages of the S-10 kits GM Heritage factory kit — 1983 Chevrolet S 10, p.37. GM Heritage factory kit — 1984 Chevrolet S 10, p.8. GM Heritage factory kit — 1985 Chevrolet S 10, p.16. GM Heritage factory kit — 1986 Chevrolet S 10, p.8. GM Heritage factory kit — 1987 Chevrolet S 10, p.16. GM Heritage factory kit — 1988 Chevrolet S 10, p.80. | Factory-verified |
| GU4 | Axle, rear, 3.08 ratio | 1983–1984 | shared S-series code; cited from the joint S-10/S-15 pages of the S-10 kits GM Heritage factory kit — 1983 Chevrolet S 10, p.37. GM Heritage factory kit — 1984 Chevrolet S 10, p.8. | Factory-verified |
| GU6 | Axle, rear, 3.42 ratio | 1983–1988 | shared S-series code; cited from the joint S-10/S-15 pages of the S-10 kits GM Heritage factory kit — 1983 Chevrolet S 10, p.37. GM Heritage factory kit — 1984 Chevrolet S 10, p.8. GM Heritage factory kit — 1985 Chevrolet S 10, p.16. GM Heritage factory kit — 1986 Chevrolet S 10, p.8. GM Heritage factory kit — 1987 Chevrolet S 10, p.16. GM Heritage factory kit — 1988 Chevrolet S 10, p.80. | Factory-verified |
| H04 | Axle, rear, 4.11 ratio | 1983–1989 | the 1989 page prints HO4; 1989 from the joint data book's weight page; shared S-series code; cited from the joint S-10/S-15 pages of the S-10 kits GM Heritage factory kit — 1983 Chevrolet S 10, p.37. GM Heritage factory kit — 1984 Chevrolet S 10, p.8. GM Heritage factory kit — 1985 Chevrolet S 10, p.16. GM Heritage factory kit — 1986 Chevrolet S 10, p.8. GM Heritage factory kit — 1987 Chevrolet S 10, p.16. GM Heritage factory kit — 1988 Chevrolet S 10, p.80. GM Heritage factory kit — 1989 Chevrolet S 10, p.20. | Factory-verified |
| Packages & Trims | ||||
| B3J | Equipment, diesel | 1983–1985 | required with the LQ7 2.2L diesel; 1983 from the diesel rows of the model selector (E63/B3J); shared S-series code; cited from the joint S-10/S-15 pages of the S-10 kits GM Heritage factory kit — 1983 Chevrolet S 10, p.43. GM Heritage factory kit — 1984 Chevrolet S 10, p.8. GM Heritage factory kit — 1985 Chevrolet S 10, p.18. | Factory-verified |
| X81 | Model, Special | 1986–1990 | the economy model; the joint books print EL/Special, the Chevrolet and GMC names; shared S-series code; cited from the joint S-10/S-15 pages of the S-10 kits GM Heritage factory kit — 1986 Chevrolet S 10, p.2. GM Heritage factory kit — 1987 Chevrolet S 10, p.10. GM Heritage factory kit — 1988 Chevrolet S 10, p.74. GM Heritage factory kit — 1989 Chevrolet S 10, p.7. GM Heritage factory kit — 1990 Chevrolet S 10, p.13. | Factory-verified |
| X96 | Model, standard | 1986–1990 | the joint model selectors print E63/X96 for the standard model beside E63/X81 for the EL/Special; shared S-series code; cited from the joint S-10/S-15 pages of the S-10 kits GM Heritage factory kit — 1986 Chevrolet S 10, p.2. GM Heritage factory kit — 1987 Chevrolet S 10, p.10. GM Heritage factory kit — 1988 Chevrolet S 10, p.74. GM Heritage factory kit — 1989 Chevrolet S 10, p.7. GM Heritage factory kit — 1990 Chevrolet S 10, p.13. | Factory-verified |
| X97 | Option package, Special | 1986–1989 | the joint books print EL/Special, the Chevrolet and GMC names; shared S-series code; cited from the joint S-10/S-15 pages of the S-10 kits GM Heritage factory kit — 1986 Chevrolet S 10, p.15. GM Heritage factory kit — 1987 Chevrolet S 10, p.22. GM Heritage factory kit — 1988 Chevrolet S 10, p.33. GM Heritage factory kit — 1989 Chevrolet S 10, p.23. | Factory-verified |
| YC1 | Trim package, High Sierra | 1983–1990 | the 1984, 1989 pages print YCI; the joint pages print it as Durango/High Sierra, the Chevrolet and GMC names; shared S-series code; cited from the joint S-10/S-15 pages of the S-10 kits GM Heritage factory kit — 1983 Chevrolet S 10, p.24. GM Heritage factory kit — 1984 Chevrolet S 10, p.25. GM Heritage factory kit — 1985 Chevrolet S 10, p.31. GM Heritage factory kit — 1986 Chevrolet S 10, p.23. GM Heritage factory kit — 1987 Chevrolet S 10, p.31. GM Heritage factory kit — 1988 Chevrolet S 10, p.95. GM Heritage factory kit — 1989 Chevrolet S 10, p.10. GM Heritage factory kit — 1990 Chevrolet S 10, p.20. | Factory-verified |
| YC2 | Trim package, Sierra Classic | 1983–1990 | the joint pages print it as Tahoe/Sierra Classic, the Chevrolet and GMC names; shared S-series code; cited from the joint S-10/S-15 pages of the S-10 kits GM Heritage factory kit — 1983 Chevrolet S 10, p.35. GM Heritage factory kit — 1984 Chevrolet S 10, p.11. GM Heritage factory kit — 1985 Chevrolet S 10, p.19. GM Heritage factory kit — 1986 Chevrolet S 10, p.11. GM Heritage factory kit — 1987 Chevrolet S 10, p.32. GM Heritage factory kit — 1988 Chevrolet S 10, p.96. GM Heritage factory kit — 1989 Chevrolet S 10, p.11. GM Heritage factory kit — 1990 Chevrolet S 10, p.23. | Factory-verified |
| YC3 | Trim package, Gypsy | 1983–1988 | the joint pages print it as Sport/Gypsy, the Chevrolet and GMC names; shared S-series code; cited from the joint S-10/S-15 pages of the S-10 kits GM Heritage factory kit — 1983 Chevrolet S 10, p.22. GM Heritage factory kit — 1984 Chevrolet S 10, p.12. GM Heritage factory kit — 1985 Chevrolet S 10, p.19. GM Heritage factory kit — 1986 Chevrolet S 10, p.11. GM Heritage factory kit — 1987 Chevrolet S 10, p.19. GM Heritage factory kit — 1988 Chevrolet S 10, p.97. | Factory-verified |
| Z07 | Package, special economy truck | 1983–1984 | only in: 6-foot box regular cab; requires the 1.9L L4, 5 speed manual, 1000 lb payload and 2.73 or 3.08 axle (1983); 1984 from a power team requirement remark (its 1984 option lines print 207); shared S-series code; cited from the joint S-10/S-15 pages of the S-10 kits GM Heritage factory kit — 1983 Chevrolet S 10, p.29. GM Heritage factory kit — 1984 Chevrolet S 10, p.8. | Factory-verified |
| Z09 | Trim, blackout package | 1989 | blackout headlamp bezels and grille; shared S-series code; cited from the joint S-10/S-15 pages of the S-10 kits GM Heritage factory kit — 1989 Chevrolet S 10, p.22. | Factory-verified |
| Z71 | Chassis equipment, off-road package | 1983–1985, 1987 | only in: 4WD; the option lines print the code as 271, so the years come from the N90 wheel price lines with Z71 (1984 prints Z7i); shared S-series code; cited from the joint S-10/S-15 pages of the S-10 kits GM Heritage factory kit — 1983 Chevrolet S 10, p.28. GM Heritage factory kit — 1984 Chevrolet S 10, p.21. GM Heritage factory kit — 1985 Chevrolet S 10, p.27. GM Heritage factory kit — 1987 Chevrolet S 10, p.25. | Factory-verified |
| ZM5 | Sales package, underbody shield | 1989–1990 | only in: 4WD; shields for fuel tank, transfer case, front differential and steering linkage (1990); 1989 from the joint data book's weight page; shared S-series code; cited from the joint S-10/S-15 pages of the S-10 kits GM Heritage factory kit — 1989 Chevrolet S 10, p.21. GM Heritage factory kit — 1990 Chevrolet S 10, p.22. | Factory-verified |
| ZM6 | Chassis package, off-road suspension | 1989–1990 | only in: 4WD; shared S-series code; cited from the joint S-10/S-15 pages of the S-10 kits GM Heritage factory kit — 1989 Chevrolet S 10, p.25. GM Heritage factory kit — 1990 Chevrolet S 10, p.23. | Factory-verified |
| ZM7 | Driver convenience package | 1989–1990 | Comfortilt steering and intermittent wipers (1989); shared S-series code; cited from the joint S-10/S-15 pages of the S-10 kits GM Heritage factory kit — 1989 Chevrolet S 10, p.22. GM Heritage factory kit — 1990 Chevrolet S 10, p.20. | Factory-verified |
| ZQ8 | Chassis package, sport suspension | 1985–1986, 1988 | the years come from the YC3 Sport price lines with ZQ8; the 1984, 1987 and 1989–1990 own lines print Z08, 208 or 708, so those years are not claimed; shared S-series code; cited from the joint S-10/S-15 pages of the S-10 kits GM Heritage factory kit — 1985 Chevrolet S 10, p.19. GM Heritage factory kit — 1986 Chevrolet S 10, p.11. GM Heritage factory kit — 1988 Chevrolet S 10, p.29. | Factory-verified |
| Equipment | ||||
| A01 | Glass, tinted, all windows | 1983, 1987–1989 | the 1987 page prints AO1; shared S-series code; cited from the joint S-10/S-15 pages of the S-10 kits GM Heritage factory kit — 1983 Chevrolet S 10, p.31. GM Heritage factory kit — 1987 Chevrolet S 10, p.22. GM Heritage factory kit — 1988 Chevrolet S 10, p.69. GM Heritage factory kit — 1989 Chevrolet S 10, p.23. | Factory-verified |
| A20 | Windows, swing-out quarter | 1983–1989 | the 1984, 1988 pages print A2O; only in: extended cab; shared S-series code; cited from the joint S-10/S-15 pages of the S-10 kits GM Heritage factory kit — 1983 Chevrolet S 10, p.28. GM Heritage factory kit — 1984 Chevrolet S 10, p.21. GM Heritage factory kit — 1985 Chevrolet S 10, p.27. GM Heritage factory kit — 1986 Chevrolet S 10, p.18. GM Heritage factory kit — 1987 Chevrolet S 10, p.25. GM Heritage factory kit — 1988 Chevrolet S 10, p.36. GM Heritage factory kit — 1989 Chevrolet S 10, p.25. | Factory-verified |
| A28 | Window, rear, sliding | 1984, 1986–1990 | shared S-series code; cited from the joint S-10/S-15 pages of the S-10 kits GM Heritage factory kit — 1984 Chevrolet S 10, p.21. GM Heritage factory kit — 1986 Chevrolet S 10, p.18. GM Heritage factory kit — 1987 Chevrolet S 10, p.26. GM Heritage factory kit — 1988 Chevrolet S 10, p.36. GM Heritage factory kit — 1989 Chevrolet S 10, p.25. GM Heritage factory kit — 1990 Chevrolet S 10, p.23. | Factory-verified |
| A31 | Window, power operated, side doors | 1984–1988 | included with ZQ2 (the operating convenience package); shared S-series code; cited from the joint S-10/S-15 pages of the S-10 kits GM Heritage factory kit — 1984 Chevrolet S 10, p.21. GM Heritage factory kit — 1985 Chevrolet S 10, p.27. GM Heritage factory kit — 1986 Chevrolet S 10, p.18. GM Heritage factory kit — 1987 Chevrolet S 10, p.26. GM Heritage factory kit — 1988 Chevrolet S 10, p.36. | Factory-verified |
| A78 | Seat backs, reclining, left-hand and right-hand | 1983–1989 | shared S-series code; cited from the joint S-10/S-15 pages of the S-10 kits GM Heritage factory kit — 1983 Chevrolet S 10, p.30. GM Heritage factory kit — 1984 Chevrolet S 10, p.19. GM Heritage factory kit — 1985 Chevrolet S 10, p.24. GM Heritage factory kit — 1986 Chevrolet S 10, p.17. GM Heritage factory kit — 1987 Chevrolet S 10, p.23. GM Heritage factory kit — 1988 Chevrolet S 10, p.35. GM Heritage factory kit — 1989 Chevrolet S 10, p.24. | Factory-verified |
| AA3 | Glass, deep tinted, with light tinted rear window | 1983–1984, 1988–1989 | shared S-series code; cited from the joint S-10/S-15 pages of the S-10 kits GM Heritage factory kit — 1983 Chevrolet S 10, p.31. GM Heritage factory kit — 1984 Chevrolet S 10, p.17. GM Heritage factory kit — 1988 Chevrolet S 10, p.69. GM Heritage factory kit — 1989 Chevrolet S 10, p.23. | Factory-verified |
| AD3 | Sunroof, manual, non-removable glass | 1988–1990 | shared S-series code; cited from the joint S-10/S-15 pages of the S-10 kits GM Heritage factory kit — 1988 Chevrolet S 10, p.35. GM Heritage factory kit — 1989 Chevrolet S 10, p.24. GM Heritage factory kit — 1990 Chevrolet S 10, p.22. | Factory-verified |
| AJ1 | Glass, deep tinted | 1983–1989 | the 1984, 1989 pages print AJI; shared S-series code; cited from the joint S-10/S-15 pages of the S-10 kits GM Heritage factory kit — 1983 Chevrolet S 10, p.31. GM Heritage factory kit — 1984 Chevrolet S 10, p.17. GM Heritage factory kit — 1985 Chevrolet S 10, p.23. GM Heritage factory kit — 1986 Chevrolet S 10, p.15. GM Heritage factory kit — 1987 Chevrolet S 10, p.22. GM Heritage factory kit — 1988 Chevrolet S 10, p.33. GM Heritage factory kit — 1989 Chevrolet S 10, p.23. | Factory-verified |
| AJ2 | Seats, rear, jump | 1983, 1986–1990 | only in: extended cab; shared S-series code; cited from the joint S-10/S-15 pages of the S-10 kits GM Heritage factory kit — 1983 Chevrolet S 10, p.30. GM Heritage factory kit — 1986 Chevrolet S 10, p.17. GM Heritage factory kit — 1987 Chevrolet S 10, p.23. GM Heritage factory kit — 1988 Chevrolet S 10, p.71. GM Heritage factory kit — 1989 Chevrolet S 10, p.24. GM Heritage factory kit — 1990 Chevrolet S 10, p.22. | Factory-verified |
| AU3 | Lock, side door, electric | 1983–1988 | included with ZQ2 (the operating convenience package); shared S-series code; cited from the joint S-10/S-15 pages of the S-10 kits GM Heritage factory kit — 1983 Chevrolet S 10, p.32. GM Heritage factory kit — 1984 Chevrolet S 10, p.17. GM Heritage factory kit — 1985 Chevrolet S 10, p.23. GM Heritage factory kit — 1986 Chevrolet S 10, p.15. GM Heritage factory kit — 1987 Chevrolet S 10, p.22. GM Heritage factory kit — 1988 Chevrolet S 10, p.33. | Factory-verified |
| AV5 | Seats, front, high-back bucket | 1989–1990 | shared S-series code; cited from the joint S-10/S-15 pages of the S-10 kits GM Heritage factory kit — 1989 Chevrolet S 10, p.24. GM Heritage factory kit — 1990 Chevrolet S 10, p.22. | Factory-verified |
| B30 | Floor covering, carpet, color-keyed | 1990 | shared S-series code; cited from the joint S-10/S-15 pages of the S-10 kits GM Heritage factory kit — 1990 Chevrolet S 10, p.20. | Factory-verified |
| B32 | Floor mats, color-keyed, front | 1983–1984, 1986, 1988–1990 | shared S-series code; cited from the joint S-10/S-15 pages of the S-10 kits GM Heritage factory kit — 1983 Chevrolet S 10, p.31. GM Heritage factory kit — 1984 Chevrolet S 10, p.17. GM Heritage factory kit — 1986 Chevrolet S 10, p.15. GM Heritage factory kit — 1988 Chevrolet S 10, p.33. GM Heritage factory kit — 1989 Chevrolet S 10, p.22. GM Heritage factory kit — 1990 Chevrolet S 10, p.20. | Factory-verified |
| B74 | Moldings, wheel opening, black | 1985–1990 | 1985–1986 from the sunshine striping paint text (either B74 or B96 required); shared S-series code; cited from the joint S-10/S-15 pages of the S-10 kits GM Heritage factory kit — 1985 Chevrolet S 10, p.44. GM Heritage factory kit — 1986 Chevrolet S 10, p.37. GM Heritage factory kit — 1987 Chevrolet S 10, p.23. GM Heritage factory kit — 1988 Chevrolet S 10, p.34. GM Heritage factory kit — 1989 Chevrolet S 10, p.23. GM Heritage factory kit — 1990 Chevrolet S 10, p.21. | Factory-verified |
| B84 | Moldings, body side and wheel opening | 1983–1989 | 1986 from a companion price line (with B84); shared S-series code; cited from the joint S-10/S-15 pages of the S-10 kits GM Heritage factory kit — 1983 Chevrolet S 10, p.31. GM Heritage factory kit — 1984 Chevrolet S 10, p.18. GM Heritage factory kit — 1985 Chevrolet S 10, p.24. GM Heritage factory kit — 1986 Chevrolet S 10, p.16. GM Heritage factory kit — 1987 Chevrolet S 10, p.23. GM Heritage factory kit — 1988 Chevrolet S 10, p.34. GM Heritage factory kit — 1989 Chevrolet S 10, p.23. | Factory-verified |
| B93 | Guards, door edge | 1983–1988 | shared S-series code; cited from the joint S-10/S-15 pages of the S-10 kits GM Heritage factory kit — 1983 Chevrolet S 10, p.31. GM Heritage factory kit — 1984 Chevrolet S 10, p.18. GM Heritage factory kit — 1985 Chevrolet S 10, p.24. GM Heritage factory kit — 1986 Chevrolet S 10, p.16. GM Heritage factory kit — 1987 Chevrolet S 10, p.23. GM Heritage factory kit — 1988 Chevrolet S 10, p.34. | Factory-verified |
| B96 | Moldings, wheel opening, bright | 1985–1987, 1989–1990 | 1986 from the sunshine striping paint text (either B74 or B96 required); shared S-series code; cited from the joint S-10/S-15 pages of the S-10 kits GM Heritage factory kit — 1985 Chevrolet S 10, p.24. GM Heritage factory kit — 1986 Chevrolet S 10, p.37. GM Heritage factory kit — 1987 Chevrolet S 10, p.23. GM Heritage factory kit — 1989 Chevrolet S 10, p.23. GM Heritage factory kit — 1990 Chevrolet S 10, p.21. | Factory-verified |
| BG9 | Floor covering, full floor, rubber, color-keyed | 1987–1989 | replaces carpeting; shared S-series code; cited from the joint S-10/S-15 pages of the S-10 kits GM Heritage factory kit — 1987 Chevrolet S 10, p.22. GM Heritage factory kit — 1988 Chevrolet S 10, p.33. GM Heritage factory kit — 1989 Chevrolet S 10, p.22. | Factory-verified |
| C3A | Payload capacity, 1500 lb | 1983–1989 | 1983–1985, 1987 and 1988 from the power team axle lines (w/C3A); shared S-series code; cited from the joint S-10/S-15 pages of the S-10 kits GM Heritage factory kit — 1983 Chevrolet S 10, p.37. GM Heritage factory kit — 1984 Chevrolet S 10, p.8. GM Heritage factory kit — 1985 Chevrolet S 10, p.16. GM Heritage factory kit — 1986 Chevrolet S 10, p.8. GM Heritage factory kit — 1987 Chevrolet S 10, p.16. GM Heritage factory kit — 1988 Chevrolet S 10, p.80. GM Heritage factory kit — 1989 Chevrolet S 10, p.15. | Factory-verified |
| C3B | Payload capacity, 1000 lb | 1983–1989 | 1986 from the power team axle lines (w/C3A-C3B); 1989 from the power team payload lines; shared S-series code; cited from the joint S-10/S-15 pages of the S-10 kits GM Heritage factory kit — 1983 Chevrolet S 10, p.38. GM Heritage factory kit — 1984 Chevrolet S 10, p.8. GM Heritage factory kit — 1985 Chevrolet S 10, p.16. GM Heritage factory kit — 1986 Chevrolet S 10, p.8. GM Heritage factory kit — 1987 Chevrolet S 10, p.16. GM Heritage factory kit — 1988 Chevrolet S 10, p.81. GM Heritage factory kit — 1989 Chevrolet S 10, p.12. | Factory-verified |
| C3C | Payload capacity, 1625 lb | 1983–1989 | 1984 from a requirement remark; 1988 from the power team payload key; shared S-series code; cited from the joint S-10/S-15 pages of the S-10 kits GM Heritage factory kit — 1983 Chevrolet S 10, p.38. GM Heritage factory kit — 1984 Chevrolet S 10, p.20. GM Heritage factory kit — 1985 Chevrolet S 10, p.16. GM Heritage factory kit — 1986 Chevrolet S 10, p.16. GM Heritage factory kit — 1987 Chevrolet S 10, p.23. GM Heritage factory kit — 1988 Chevrolet S 10, p.80. GM Heritage factory kit — 1989 Chevrolet S 10, p.20. | Factory-verified |
| C3D | Payload capacity, 1250 lb | 1984–1985 | shared S-series code; cited from the joint S-10/S-15 pages of the S-10 kits GM Heritage factory kit — 1984 Chevrolet S 10, p.8. GM Heritage factory kit — 1985 Chevrolet S 10, p.16. | Factory-verified |
| C60 | Air conditioning | 1983–1990 | the 1985 and 1987 pages name it All-Weather air conditioning; 1984 and 1986 from the radiator price lines with C60; shared S-series code; cited from the joint S-10/S-15 pages of the S-10 kits GM Heritage factory kit — 1983 Chevrolet S 10, p.32. GM Heritage factory kit — 1984 Chevrolet S 10, p.16. GM Heritage factory kit — 1985 Chevrolet S 10, p.22. GM Heritage factory kit — 1986 Chevrolet S 10, p.15. GM Heritage factory kit — 1987 Chevrolet S 10, p.21. GM Heritage factory kit — 1988 Chevrolet S 10, p.31. GM Heritage factory kit — 1989 Chevrolet S 10, p.18. GM Heritage factory kit — 1990 Chevrolet S 10, p.20. | Factory-verified |
| C91 | Lamp, dome | 1983 | shared S-series code; cited from the joint S-10/S-15 pages of the S-10 kits GM Heritage factory kit — 1983 Chevrolet S 10, p.31. | Factory-verified |
| CD4 | Wiper system, windshield, intermittent | 1983–1988 | shared S-series code; cited from the joint S-10/S-15 pages of the S-10 kits GM Heritage factory kit — 1983 Chevrolet S 10, p.28. GM Heritage factory kit — 1984 Chevrolet S 10, p.21. GM Heritage factory kit — 1985 Chevrolet S 10, p.27. GM Heritage factory kit — 1986 Chevrolet S 10, p.19. GM Heritage factory kit — 1987 Chevrolet S 10, p.25. GM Heritage factory kit — 1988 Chevrolet S 10, p.36. | Factory-verified |
| D34 | Mirror, visor, right-hand | 1984, 1989 | shared S-series code; cited from the joint S-10/S-15 pages of the S-10 kits GM Heritage factory kit — 1984 Chevrolet S 10, p.18. GM Heritage factory kit — 1989 Chevrolet S 10, p.23. | Factory-verified |
| D44 | Mirrors, outside, below eye line, painted | 1986, 1989–1990 | left-hand and right-hand; shared S-series code; cited from the joint S-10/S-15 pages of the S-10 kits GM Heritage factory kit — 1986 Chevrolet S 10, p.16. GM Heritage factory kit — 1989 Chevrolet S 10, p.23. GM Heritage factory kit — 1990 Chevrolet S 10, p.30. | Factory-verified |
| D45 | Mirrors, outside, below eye line, bright | 1986, 1989 | left-hand and right-hand; shared S-series code; cited from the joint S-10/S-15 pages of the S-10 kits GM Heritage factory kit — 1986 Chevrolet S 10, p.16. GM Heritage factory kit — 1989 Chevrolet S 10, p.23. | Factory-verified |
| D55 | Console, front compartment floor | 1983–1985, 1987–1989 | requires bucket seats; shared S-series code; cited from the joint S-10/S-15 pages of the S-10 kits GM Heritage factory kit — 1983 Chevrolet S 10, p.32. GM Heritage factory kit — 1984 Chevrolet S 10, p.16. GM Heritage factory kit — 1985 Chevrolet S 10, p.22. GM Heritage factory kit — 1987 Chevrolet S 10, p.22. GM Heritage factory kit — 1988 Chevrolet S 10, p.86. GM Heritage factory kit — 1989 Chevrolet S 10, p.22. | Factory-verified |
| D73 | Rails, pickup box side | 1986 | shared S-series code; cited from the joint S-10/S-15 pages of the S-10 kits GM Heritage factory kit — 1986 Chevrolet S 10, p.17. | Factory-verified |
| D85 | Striping, body | 1986–1988 | 1986–1987 from the color chart headings; shared S-series code; cited from the joint S-10/S-15 pages of the S-10 kits GM Heritage factory kit — 1986 Chevrolet S 10, p.31. GM Heritage factory kit — 1987 Chevrolet S 10, p.39. GM Heritage factory kit — 1988 Chevrolet S 10, p.89. | Factory-verified |
| D90 | Striping, sunshine | 1985–1990 | the 1986 page prints D9O; shared S-series code; cited from the joint S-10/S-15 pages of the S-10 kits GM Heritage factory kit — 1985 Chevrolet S 10, p.40. GM Heritage factory kit — 1986 Chevrolet S 10, p.18. GM Heritage factory kit — 1987 Chevrolet S 10, p.24. GM Heritage factory kit — 1988 Chevrolet S 10, p.89. GM Heritage factory kit — 1989 Chevrolet S 10, p.24. GM Heritage factory kit — 1990 Chevrolet S 10, p.22. | Factory-verified |
| D96 | Body stripe, side, upper | 1989–1990 | shared S-series code; cited from the joint S-10/S-15 pages of the S-10 kits GM Heritage factory kit — 1989 Chevrolet S 10, p.24. GM Heritage factory kit — 1990 Chevrolet S 10, p.22. | Factory-verified |
| D98 | Striping, rally | 1986–1987 | 1986 from the color chart heading, 1987 from the stripe color requirement remarks; shared S-series code; cited from the joint S-10/S-15 pages of the S-10 kits GM Heritage factory kit — 1986 Chevrolet S 10, p.33. GM Heritage factory kit — 1987 Chevrolet S 10, p.24. | Factory-verified |
| DC4 | Mirror, inside, with reading lamps | 1988–1989 | shared S-series code; cited from the joint S-10/S-15 pages of the S-10 kits GM Heritage factory kit — 1988 Chevrolet S 10, p.33. GM Heritage factory kit — 1989 Chevrolet S 10, p.23. | Factory-verified |
| E63 | Body equipment, fleetside pickup box | 1983–1990 | printed as the Fleetside/Wideside body ordering code; shared S-series code; cited from the joint S-10/S-15 pages of the S-10 kits GM Heritage factory kit — 1983 Chevrolet S 10, p.35. GM Heritage factory kit — 1984 Chevrolet S 10, p.2. GM Heritage factory kit — 1985 Chevrolet S 10, p.18. GM Heritage factory kit — 1986 Chevrolet S 10, p.2. GM Heritage factory kit — 1987 Chevrolet S 10, p.10. GM Heritage factory kit — 1988 Chevrolet S 10, p.74. GM Heritage factory kit — 1989 Chevrolet S 10, p.7. GM Heritage factory kit — 1990 Chevrolet S 10, p.3. | Factory-verified |
| F51 | Shock absorbers, front and rear, heavy duty | 1983–1990 | shared S-series code; cited from the joint S-10/S-15 pages of the S-10 kits GM Heritage factory kit — 1983 Chevrolet S 10, p.30. GM Heritage factory kit — 1984 Chevrolet S 10, p.19. GM Heritage factory kit — 1985 Chevrolet S 10, p.25. GM Heritage factory kit — 1986 Chevrolet S 10, p.17. GM Heritage factory kit — 1987 Chevrolet S 10, p.24. GM Heritage factory kit — 1988 Chevrolet S 10, p.35. GM Heritage factory kit — 1989 Chevrolet S 10, p.24. GM Heritage factory kit — 1990 Chevrolet S 10, p.30. | Factory-verified |
| F59 | Stabilizer bar, front | 1983, 1985–1989 | shared S-series code; cited from the joint S-10/S-15 pages of the S-10 kits GM Heritage factory kit — 1983 Chevrolet S 10, p.29. GM Heritage factory kit — 1985 Chevrolet S 10, p.25. GM Heritage factory kit — 1986 Chevrolet S 10, p.17. GM Heritage factory kit — 1987 Chevrolet S 10, p.24. GM Heritage factory kit — 1988 Chevrolet S 10, p.35. GM Heritage factory kit — 1989 Chevrolet S 10, p.24. | Factory-verified |
| F60 | Suspension, front, heavy duty | 1985–1989 | only in: 4WD; includes F51; shared S-series code; cited from the joint S-10/S-15 pages of the S-10 kits GM Heritage factory kit — 1985 Chevrolet S 10, p.26. GM Heritage factory kit — 1986 Chevrolet S 10, p.18. GM Heritage factory kit — 1987 Chevrolet S 10, p.24. GM Heritage factory kit — 1988 Chevrolet S 10, p.35. GM Heritage factory kit — 1989 Chevrolet S 10, p.24. | Factory-verified |
| G51 | Springs, rear, heavy duty | 1990 | shared S-series code; cited from the joint S-10/S-15 pages of the S-10 kits GM Heritage factory kit — 1990 Chevrolet S 10, p.13. | Factory-verified |
| J50 | Brakes, vacuum power | 1983, 1988 | 1988 from a power team requirement remark (Reqs J50 Brakes); shared S-series code; cited from the joint S-10/S-15 pages of the S-10 kits GM Heritage factory kit — 1983 Chevrolet S 10, p.32. GM Heritage factory kit — 1988 Chevrolet S 10, p.81. | Factory-verified |
| K05 | Heater, engine block | 1983, 1986–1988 | the 1988 page prints KO5; 600 watt, 120 volt (1986–1988); shared S-series code; cited from the joint S-10/S-15 pages of the S-10 kits GM Heritage factory kit — 1983 Chevrolet S 10, p.31. GM Heritage factory kit — 1986 Chevrolet S 10, p.15. GM Heritage factory kit — 1987 Chevrolet S 10, p.22. GM Heritage factory kit — 1988 Chevrolet S 10, p.33. | Factory-verified |
| K07 | Heater, engine block and fuel system | 1984–1985 | only with B3J diesel equipment; shared S-series code; cited from the joint S-10/S-15 pages of the S-10 kits GM Heritage factory kit — 1984 Chevrolet S 10, p.17. GM Heritage factory kit — 1985 Chevrolet S 10, p.23. | Factory-verified |
| K34 | Speed control, electronic | 1983–1990 | shared S-series code; cited from the joint S-10/S-15 pages of the S-10 kits GM Heritage factory kit — 1983 Chevrolet S 10, p.29. GM Heritage factory kit — 1984 Chevrolet S 10, p.19. GM Heritage factory kit — 1985 Chevrolet S 10, p.25. GM Heritage factory kit — 1986 Chevrolet S 10, p.17. GM Heritage factory kit — 1987 Chevrolet S 10, p.24. GM Heritage factory kit — 1988 Chevrolet S 10, p.35. GM Heritage factory kit — 1989 Chevrolet S 10, p.24. GM Heritage factory kit — 1990 Chevrolet S 10, p.30. | Factory-verified |
| K46 | Air cleaner, pre-cleaner | 1985–1988 | only with the 2.8L V6; shared S-series code; cited from the joint S-10/S-15 pages of the S-10 kits GM Heritage factory kit — 1985 Chevrolet S 10, p.22. GM Heritage factory kit — 1986 Chevrolet S 10, p.14. GM Heritage factory kit — 1987 Chevrolet S 10, p.21. GM Heritage factory kit — 1988 Chevrolet S 10, p.31. | Factory-verified |
| K81 | Generator | 1983–1985 | 66 amp; the merged S-10 Blazer doc writes Generator, 66 amp; shared S-series code; cited from the joint S-10/S-15 pages of the S-10 kits GM Heritage factory kit — 1983 Chevrolet S 10, p.31. GM Heritage factory kit — 1984 Chevrolet S 10, p.17. GM Heritage factory kit — 1985 Chevrolet S 10, p.23. | Factory-verified |
| KC4 | Cooling system, engine oil cooler | 1983, 1985, 1988–1990 | shared S-series code; cited from the joint S-10/S-15 pages of the S-10 kits GM Heritage factory kit — 1983 Chevrolet S 10, p.32. GM Heritage factory kit — 1985 Chevrolet S 10, p.23. GM Heritage factory kit — 1988 Chevrolet S 10, p.86. GM Heritage factory kit — 1989 Chevrolet S 10, p.18. GM Heritage factory kit — 1990 Chevrolet S 10, p.30. | Factory-verified |
| N33 | Steering wheel, Comfortilt | 1983–1988 | shared S-series code; cited from the joint S-10/S-15 pages of the S-10 kits GM Heritage factory kit — 1983 Chevrolet S 10, p.29. GM Heritage factory kit — 1984 Chevrolet S 10, p.20. GM Heritage factory kit — 1985 Chevrolet S 10, p.25. GM Heritage factory kit — 1986 Chevrolet S 10, p.17. GM Heritage factory kit — 1987 Chevrolet S 10, p.24. GM Heritage factory kit — 1988 Chevrolet S 10, p.35. | Factory-verified |
| N40 | Steering, power | 1983–1990 | the 1984 page prints N4O; 1984 from the power team requirement remark; shared S-series code; cited from the joint S-10/S-15 pages of the S-10 kits GM Heritage factory kit — 1983 Chevrolet S 10, p.29. GM Heritage factory kit — 1984 Chevrolet S 10, p.8. GM Heritage factory kit — 1985 Chevrolet S 10, p.25. GM Heritage factory kit — 1986 Chevrolet S 10, p.17. GM Heritage factory kit — 1987 Chevrolet S 10, p.24. GM Heritage factory kit — 1988 Chevrolet S 10, p.35. GM Heritage factory kit — 1989 Chevrolet S 10, p.24. GM Heritage factory kit — 1990 Chevrolet S 10, p.22. | Factory-verified |
| N51 | Steering, power, not desired | 1983–1989 | shared S-series code; cited from the joint S-10/S-15 pages of the S-10 kits GM Heritage factory kit — 1983 Chevrolet S 10, p.29. GM Heritage factory kit — 1984 Chevrolet S 10, p.20. GM Heritage factory kit — 1985 Chevrolet S 10, p.25. GM Heritage factory kit — 1986 Chevrolet S 10, p.17. GM Heritage factory kit — 1987 Chevrolet S 10, p.24. GM Heritage factory kit — 1988 Chevrolet S 10, p.35. GM Heritage factory kit — 1989 Chevrolet S 10, p.24. | Factory-verified |
| N79 | Wheel, spare, full size | 1988 | with ZJ7 rally wheels; shared S-series code; cited from the joint S-10/S-15 pages of the S-10 kits GM Heritage factory kit — 1988 Chevrolet S 10, p.36. | Factory-verified |
| N90 | Wheels, aluminum, cast | 1983–1984, 1986–1990 | shared S-series code; cited from the joint S-10/S-15 pages of the S-10 kits GM Heritage factory kit — 1983 Chevrolet S 10, p.28. GM Heritage factory kit — 1984 Chevrolet S 10, p.21. GM Heritage factory kit — 1986 Chevrolet S 10, p.18. GM Heritage factory kit — 1987 Chevrolet S 10, p.26. GM Heritage factory kit — 1988 Chevrolet S 10, p.36. GM Heritage factory kit — 1989 Chevrolet S 10, p.25. GM Heritage factory kit — 1990 Chevrolet S 10, p.23. | Factory-verified |
| NK2 | Fuel tank, approximately 20 gallon | 1983–1987 | left-hand frame mounted in 1983–1984 and 1986–1987; the merged S-10 Blazer doc writes left-hand frame mounted; shared S-series code; cited from the joint S-10/S-15 pages of the S-10 kits GM Heritage factory kit — 1983 Chevrolet S 10, p.28. GM Heritage factory kit — 1984 Chevrolet S 10, p.20. GM Heritage factory kit — 1985 Chevrolet S 10, p.26. GM Heritage factory kit — 1986 Chevrolet S 10, p.18. GM Heritage factory kit — 1987 Chevrolet S 10, p.24. | Factory-verified |
| NY1 | Shield, fuel tank | 1983–1988 | only in: 4WD; 1983 from the NY7 requirement remark; shared S-series code; cited from the joint S-10/S-15 pages of the S-10 kits GM Heritage factory kit — 1983 Chevrolet S 10, p.30. GM Heritage factory kit — 1984 Chevrolet S 10, p.19. GM Heritage factory kit — 1985 Chevrolet S 10, p.24. GM Heritage factory kit — 1986 Chevrolet S 10, p.17. GM Heritage factory kit — 1987 Chevrolet S 10, p.23. GM Heritage factory kit — 1988 Chevrolet S 10, p.35. | Factory-verified |
| NY7 | Shield, transfer case | 1983–1988 | only in: 4WD; 1983 from the NY1 requirement remark; shared S-series code; cited from the joint S-10/S-15 pages of the S-10 kits GM Heritage factory kit — 1983 Chevrolet S 10, p.30. GM Heritage factory kit — 1984 Chevrolet S 10, p.19. GM Heritage factory kit — 1985 Chevrolet S 10, p.24. GM Heritage factory kit — 1986 Chevrolet S 10, p.17. GM Heritage factory kit — 1987 Chevrolet S 10, p.23. GM Heritage factory kit — 1988 Chevrolet S 10, p.35. | Factory-verified |
| P01 | Wheel covers, bright metal | 1986–1988 | the 1986 page prints PO1; shared S-series code; cited from the joint S-10/S-15 pages of the S-10 kits GM Heritage factory kit — 1986 Chevrolet S 10, p.18. GM Heritage factory kit — 1987 Chevrolet S 10, p.24. GM Heritage factory kit — 1988 Chevrolet S 10, p.36. | Factory-verified |
| P06 | Wheel trim rings | 1983, 1987–1990 | shared S-series code; cited from the joint S-10/S-15 pages of the S-10 kits GM Heritage factory kit — 1983 Chevrolet S 10, p.28. GM Heritage factory kit — 1987 Chevrolet S 10, p.26. GM Heritage factory kit — 1988 Chevrolet S 10, p.36. GM Heritage factory kit — 1989 Chevrolet S 10, p.25. GM Heritage factory kit — 1990 Chevrolet S 10, p.23. | Factory-verified |
| TR9 | Lighting, auxiliary | 1983–1990 | includes the UF2 cargo lamp in 1983–1988; the 1989 entry lists other lamps and the DC4 lighted inside mirror; shared S-series code; cited from the joint S-10/S-15 pages of the S-10 kits GM Heritage factory kit — 1983 Chevrolet S 10, p.31. GM Heritage factory kit — 1984 Chevrolet S 10, p.17. GM Heritage factory kit — 1985 Chevrolet S 10, p.23. GM Heritage factory kit — 1986 Chevrolet S 10, p.16. GM Heritage factory kit — 1987 Chevrolet S 10, p.22. GM Heritage factory kit — 1988 Chevrolet S 10, p.33. GM Heritage factory kit — 1989 Chevrolet S 10, p.23. GM Heritage factory kit — 1990 Chevrolet S 10, p.21. | Factory-verified |
| U16 | Tachometer, engine | 1988 | shared S-series code; cited from the joint S-10/S-15 pages of the S-10 kits GM Heritage factory kit — 1988 Chevrolet S 10, p.69. | Factory-verified |
| U37 | Lighter, cigarette | 1983–1984, 1986–1989 | shared S-series code; cited from the joint S-10/S-15 pages of the S-10 kits GM Heritage factory kit — 1983 Chevrolet S 10, p.31. GM Heritage factory kit — 1984 Chevrolet S 10, p.17. GM Heritage factory kit — 1986 Chevrolet S 10, p.15. GM Heritage factory kit — 1987 Chevrolet S 10, p.22. GM Heritage factory kit — 1988 Chevrolet S 10, p.33. GM Heritage factory kit — 1989 Chevrolet S 10, p.23. | Factory-verified |
| U52 | Instrumentation, electronic | 1989–1990 | shared S-series code; cited from the joint S-10/S-15 pages of the S-10 kits GM Heritage factory kit — 1989 Chevrolet S 10, p.22. GM Heritage factory kit — 1990 Chevrolet S 10, p.20. | Factory-verified |
| U63 | Radio, AM | 1983, 1985, 1987–1988 | shared S-series code; cited from the joint S-10/S-15 pages of the S-10 kits GM Heritage factory kit — 1983 Chevrolet S 10, p.30. GM Heritage factory kit — 1985 Chevrolet S 10, p.24. GM Heritage factory kit — 1987 Chevrolet S 10, p.23. GM Heritage factory kit — 1988 Chevrolet S 10, p.34. | Factory-verified |
| U66 | Speakers, premium dual rear | 1983, 1986–1988 | shared S-series code; cited from the joint S-10/S-15 pages of the S-10 kits GM Heritage factory kit — 1983 Chevrolet S 10, p.30. GM Heritage factory kit — 1986 Chevrolet S 10, p.17. GM Heritage factory kit — 1987 Chevrolet S 10, p.23. GM Heritage factory kit — 1988 Chevrolet S 10, p.34. | Factory-verified |
| U69 | Radio, AM/FM | 1983, 1985, 1987 | shared S-series code; cited from the joint S-10/S-15 pages of the S-10 kits GM Heritage factory kit — 1983 Chevrolet S 10, p.30. GM Heritage factory kit — 1985 Chevrolet S 10, p.24. GM Heritage factory kit — 1987 Chevrolet S 10, p.23. | Factory-verified |
| U89 | Wiring harness, 5-lead | 1983–1984, 1986–1990 | not with Z82; shared S-series code; cited from the joint S-10/S-15 pages of the S-10 kits GM Heritage factory kit — 1983 Chevrolet S 10, p.31. GM Heritage factory kit — 1984 Chevrolet S 10, p.18. GM Heritage factory kit — 1986 Chevrolet S 10, p.15. GM Heritage factory kit — 1987 Chevrolet S 10, p.22. GM Heritage factory kit — 1988 Chevrolet S 10, p.33. GM Heritage factory kit — 1989 Chevrolet S 10, p.23. GM Heritage factory kit — 1990 Chevrolet S 10, p.30. | Factory-verified |
| UA1 | Battery, heavy duty | 1983, 1985–1990 | the 1986, 1990 pages print UAI; included with V10; shared S-series code; cited from the joint S-10/S-15 pages of the S-10 kits GM Heritage factory kit — 1983 Chevrolet S 10, p.32. GM Heritage factory kit — 1985 Chevrolet S 10, p.22. GM Heritage factory kit — 1986 Chevrolet S 10, p.14. GM Heritage factory kit — 1987 Chevrolet S 10, p.21. GM Heritage factory kit — 1988 Chevrolet S 10, p.31. GM Heritage factory kit — 1989 Chevrolet S 10, p.22. GM Heritage factory kit — 1990 Chevrolet S 10, p.20. | Factory-verified |
| UE8 | Clock, electronic digital | 1983 | shared S-series code; cited from the joint S-10/S-15 pages of the S-10 kits GM Heritage factory kit — 1983 Chevrolet S 10, p.32. | Factory-verified |
| UF2 | Lamp, cargo area | 1983–1988 | shared S-series code; cited from the joint S-10/S-15 pages of the S-10 kits GM Heritage factory kit — 1983 Chevrolet S 10, p.31. GM Heritage factory kit — 1984 Chevrolet S 10, p.17. GM Heritage factory kit — 1985 Chevrolet S 10, p.23. GM Heritage factory kit — 1986 Chevrolet S 10, p.15. GM Heritage factory kit — 1987 Chevrolet S 10, p.22. GM Heritage factory kit — 1988 Chevrolet S 10, p.33. | Factory-verified |
| UL1 | Radio, AM/FM stereo, clock, ETR | 1983, 1985 | 1983 from the U66 speaker requirement remark; GM's later lists use UL1 for a European frequency radio; shared S-series code; cited from the joint S-10/S-15 pages of the S-10 kits GM Heritage factory kit — 1983 Chevrolet S 10, p.30. GM Heritage factory kit — 1985 Chevrolet S 10, p.24. | Factory-verified |
| UL5 | Radio, delete | 1986–1988, 1990 | shared S-series code; cited from the joint S-10/S-15 pages of the S-10 kits GM Heritage factory kit — 1986 Chevrolet S 10, p.17. GM Heritage factory kit — 1987 Chevrolet S 10, p.23. GM Heritage factory kit — 1988 Chevrolet S 10, p.34. GM Heritage factory kit — 1990 Chevrolet S 10, p.22. | Factory-verified |
| UM6 | Radio, AM/FM stereo, seek-scan, stereo cassette, clock, ETR | 1987–1990 | the 1987 page prints seek and scan; the merged S-10 Blazer doc writes seek/scan; shared S-series code; cited from the joint S-10/S-15 pages of the S-10 kits GM Heritage factory kit — 1987 Chevrolet S 10, p.23. GM Heritage factory kit — 1988 Chevrolet S 10, p.70. GM Heritage factory kit — 1989 Chevrolet S 10, p.24. GM Heritage factory kit — 1990 Chevrolet S 10, p.22. | Factory-verified |
| UM7 | Radio, AM/FM stereo, seek-scan, clock, ETR | 1986–1988, 1990 | the 1986–1987 pages print seek and scan; the 1990 joint book marks it standard on GMC models; the merged S-10 Blazer doc writes seek/scan; shared S-series code; cited from the joint S-10/S-15 pages of the S-10 kits GM Heritage factory kit — 1986 Chevrolet S 10, p.17. GM Heritage factory kit — 1987 Chevrolet S 10, p.23. GM Heritage factory kit — 1988 Chevrolet S 10, p.34. GM Heritage factory kit — 1990 Chevrolet S 10, p.22. | Factory-verified |
| UT5 | Radio, AM, ETR | 1989 | shared S-series code; cited from the joint S-10/S-15 pages of the S-10 kits GM Heritage factory kit — 1989 Chevrolet S 10, p.24. | Factory-verified |
| UU7 | Radio, AM/FM stereo, stereo cassette, clock, ETR | 1983–1984 | printed only in the U66 speaker requirement remark (its own 1984 option line prints UUT); shared S-series code; cited from the joint S-10/S-15 pages of the S-10 kits GM Heritage factory kit — 1983 Chevrolet S 10, p.30. GM Heritage factory kit — 1984 Chevrolet S 10, p.18. | Factory-verified |
| UU9 | Radio, AM/FM stereo, ETR | 1983–1988 | 1984, 1986 and 1987 from the U66 speaker requirement remark; shared S-series code; cited from the joint S-10/S-15 pages of the S-10 kits GM Heritage factory kit — 1983 Chevrolet S 10, p.30. GM Heritage factory kit — 1984 Chevrolet S 10, p.18. GM Heritage factory kit — 1985 Chevrolet S 10, p.24. GM Heritage factory kit — 1986 Chevrolet S 10, p.17. GM Heritage factory kit — 1987 Chevrolet S 10, p.23. GM Heritage factory kit — 1988 Chevrolet S 10, p.34. | Factory-verified |
| UX1 | Radio, AM stereo/FM stereo, seek-scan, stereo cassette with search and repeat, graphic equalizer, clock, ETR | 1985–1990 | the 1989–1990 pages print UXI; the 1985–1987 pages print seek and scan; the merged S-10 Blazer doc writes seek/scan; shared S-series code; cited from the joint S-10/S-15 pages of the S-10 kits GM Heritage factory kit — 1985 Chevrolet S 10, p.24. GM Heritage factory kit — 1986 Chevrolet S 10, p.17. GM Heritage factory kit — 1987 Chevrolet S 10, p.23. GM Heritage factory kit — 1988 Chevrolet S 10, p.34. GM Heritage factory kit — 1989 Chevrolet S 10, p.24. GM Heritage factory kit — 1990 Chevrolet S 10, p.22. | Factory-verified |
| V01 | Radiator, heavy duty | 1983–1990 | the 1984, 1986 pages print VO1; included with C60; shared S-series code; cited from the joint S-10/S-15 pages of the S-10 kits GM Heritage factory kit — 1983 Chevrolet S 10, p.32. GM Heritage factory kit — 1984 Chevrolet S 10, p.16, p.15. GM Heritage factory kit — 1985 Chevrolet S 10, p.23. GM Heritage factory kit — 1986 Chevrolet S 10, p.15. GM Heritage factory kit — 1987 Chevrolet S 10, p.22, p.21. GM Heritage factory kit — 1988 Chevrolet S 10, p.32. GM Heritage factory kit — 1989 Chevrolet S 10, p.22. GM Heritage factory kit — 1990 Chevrolet S 10, p.20. | Factory-verified |
| V02 | Radiator and transmission oil cooler, heavy duty | 1983–1990 | the 1984, 1987 pages print VO2; automatic transmission only; 1987 from the Z82 requirement remark; shared S-series code; cited from the joint S-10/S-15 pages of the S-10 kits GM Heritage factory kit — 1983 Chevrolet S 10, p.32. GM Heritage factory kit — 1984 Chevrolet S 10, p.16. GM Heritage factory kit — 1985 Chevrolet S 10, p.23. GM Heritage factory kit — 1986 Chevrolet S 10, p.15. GM Heritage factory kit — 1987 Chevrolet S 10, p.24. GM Heritage factory kit — 1988 Chevrolet S 10, p.32. GM Heritage factory kit — 1989 Chevrolet S 10, p.18. GM Heritage factory kit — 1990 Chevrolet S 10, p.18. | Factory-verified |
| V10 | Package, cold climate | 1983–1984, 1986–1990 | the 1989 page prints VIO; shared S-series code; cited from the joint S-10/S-15 pages of the S-10 kits GM Heritage factory kit — 1983 Chevrolet S 10, p.32. GM Heritage factory kit — 1984 Chevrolet S 10, p.16. GM Heritage factory kit — 1986 Chevrolet S 10, p.14. GM Heritage factory kit — 1987 Chevrolet S 10, p.21. GM Heritage factory kit — 1988 Chevrolet S 10, p.32. GM Heritage factory kit — 1989 Chevrolet S 10, p.22. GM Heritage factory kit — 1990 Chevrolet S 10, p.20. | Factory-verified |
| V22 | Grille, chromed | 1983–1984, 1986–1989 | shared S-series code; cited from the joint S-10/S-15 pages of the S-10 kits GM Heritage factory kit — 1983 Chevrolet S 10, p.31. GM Heritage factory kit — 1984 Chevrolet S 10, p.17. GM Heritage factory kit — 1986 Chevrolet S 10, p.15. GM Heritage factory kit — 1987 Chevrolet S 10, p.22. GM Heritage factory kit — 1988 Chevrolet S 10, p.33. GM Heritage factory kit — 1989 Chevrolet S 10, p.23. | Factory-verified |
| V28 | Bumper guards, front, black | 1983–1988 | shared S-series code; cited from the joint S-10/S-15 pages of the S-10 kits GM Heritage factory kit — 1983 Chevrolet S 10, p.32. GM Heritage factory kit — 1984 Chevrolet S 10, p.15. GM Heritage factory kit — 1985 Chevrolet S 10, p.22. GM Heritage factory kit — 1986 Chevrolet S 10, p.14. GM Heritage factory kit — 1987 Chevrolet S 10, p.21. GM Heritage factory kit — 1988 Chevrolet S 10, p.32. | Factory-verified |
| V43 | Bumper, rear step, painted black | 1983, 1985–1990 | shared S-series code; cited from the joint S-10/S-15 pages of the S-10 kits GM Heritage factory kit — 1983 Chevrolet S 10, p.32. GM Heritage factory kit — 1985 Chevrolet S 10, p.22. GM Heritage factory kit — 1986 Chevrolet S 10, p.14. GM Heritage factory kit — 1987 Chevrolet S 10, p.21. GM Heritage factory kit — 1988 Chevrolet S 10, p.32. GM Heritage factory kit — 1989 Chevrolet S 10, p.22. GM Heritage factory kit — 1990 Chevrolet S 10, p.20. | Factory-verified |
| V76 | Tow hooks, front | 1983, 1985–1989 | only in: 4WD; shared S-series code; cited from the joint S-10/S-15 pages of the S-10 kits GM Heritage factory kit — 1983 Chevrolet S 10, p.28. GM Heritage factory kit — 1985 Chevrolet S 10, p.26. GM Heritage factory kit — 1986 Chevrolet S 10, p.18. GM Heritage factory kit — 1987 Chevrolet S 10, p.24. GM Heritage factory kit — 1988 Chevrolet S 10, p.36. GM Heritage factory kit — 1989 Chevrolet S 10, p.25. | Factory-verified |
| VB2 | Bumper, rear step, color-keyed | 1983–1988 | shared S-series code; cited from the joint S-10/S-15 pages of the S-10 kits GM Heritage factory kit — 1983 Chevrolet S 10, p.32. GM Heritage factory kit — 1984 Chevrolet S 10, p.15. GM Heritage factory kit — 1985 Chevrolet S 10, p.22. GM Heritage factory kit — 1986 Chevrolet S 10, p.14. GM Heritage factory kit — 1987 Chevrolet S 10, p.21. GM Heritage factory kit — 1988 Chevrolet S 10, p.32. | Factory-verified |
| VB3 | Bumper, rear step, chromed, with rub strip | 1983–1990 | shared S-series code; cited from the joint S-10/S-15 pages of the S-10 kits GM Heritage factory kit — 1983 Chevrolet S 10, p.32. GM Heritage factory kit — 1984 Chevrolet S 10, p.15. GM Heritage factory kit — 1985 Chevrolet S 10, p.22. GM Heritage factory kit — 1986 Chevrolet S 10, p.14. GM Heritage factory kit — 1987 Chevrolet S 10, p.21. GM Heritage factory kit — 1988 Chevrolet S 10, p.68. GM Heritage factory kit — 1989 Chevrolet S 10, p.22. GM Heritage factory kit — 1990 Chevrolet S 10, p.20. | Factory-verified |
| VG3 | Bumper, front, deluxe chromed, with rub strip | 1983–1990 | shared S-series code; cited from the joint S-10/S-15 pages of the S-10 kits GM Heritage factory kit — 1983 Chevrolet S 10, p.32. GM Heritage factory kit — 1984 Chevrolet S 10, p.15. GM Heritage factory kit — 1985 Chevrolet S 10, p.22. GM Heritage factory kit — 1986 Chevrolet S 10, p.14. GM Heritage factory kit — 1987 Chevrolet S 10, p.21. GM Heritage factory kit — 1988 Chevrolet S 10, p.32. GM Heritage factory kit — 1989 Chevrolet S 10, p.22. GM Heritage factory kit — 1990 Chevrolet S 10, p.20. | Factory-verified |
| VT3 | Bumper, front, color-keyed | 1983–1988 | 1984–1987 from the VB2 requirement remark; shared S-series code; cited from the joint S-10/S-15 pages of the S-10 kits GM Heritage factory kit — 1983 Chevrolet S 10, p.32. GM Heritage factory kit — 1984 Chevrolet S 10, p.15. GM Heritage factory kit — 1985 Chevrolet S 10, p.22. GM Heritage factory kit — 1986 Chevrolet S 10, p.14. GM Heritage factory kit — 1987 Chevrolet S 10, p.21. GM Heritage factory kit — 1988 Chevrolet S 10, p.68. | Factory-verified |
| X9H | Payload capacity, 2000 lb | 1988–1989 | 1988 from the power team payload key; shared S-series code; cited from the joint S-10/S-15 pages of the S-10 kits GM Heritage factory kit — 1988 Chevrolet S 10, p.81. GM Heritage factory kit — 1989 Chevrolet S 10, p.23. | Factory-verified |
| YJ3 | Decal, 4x4, pickup box | 1985–1988 | only in: 4WD; replaces the cab pillar 4x4 emblem; shared S-series code; cited from the joint S-10/S-15 pages of the S-10 kits GM Heritage factory kit — 1985 Chevrolet S 10, p.23. GM Heritage factory kit — 1986 Chevrolet S 10, p.15. GM Heritage factory kit — 1987 Chevrolet S 10, p.22. GM Heritage factory kit — 1988 Chevrolet S 10, p.32. | Factory-verified |
| Z53 | Gages, voltmeter, temperature, oil pressure and trip odometer | 1983, 1985, 1987–1989 | shared S-series code; cited from the joint S-10/S-15 pages of the S-10 kits GM Heritage factory kit — 1983 Chevrolet S 10, p.18. GM Heritage factory kit — 1985 Chevrolet S 10, p.23. GM Heritage factory kit — 1987 Chevrolet S 10, p.22. GM Heritage factory kit — 1988 Chevrolet S 10, p.69. GM Heritage factory kit — 1989 Chevrolet S 10, p.22. | Factory-verified |
| Z82 | Trailering special equipment, heavy duty | 1983–1985, 1988, 1990 | 1983–1985 from the power team footnotes (Reqs Z82 Trailering); the 1986 and 1987 own entries print 282, so those years are not claimed; shared S-series code; cited from the joint S-10/S-15 pages of the S-10 kits GM Heritage factory kit — 1983 Chevrolet S 10, p.37. GM Heritage factory kit — 1984 Chevrolet S 10, p.8. GM Heritage factory kit — 1985 Chevrolet S 10, p.16. GM Heritage factory kit — 1988 Chevrolet S 10, p.72. GM Heritage factory kit — 1990 Chevrolet S 10, p.30. | Factory-verified |
| ZJ7 | Wheels, rally | 1986–1990 | 1989 from the joint data book's weight page; shared S-series code; cited from the joint S-10/S-15 pages of the S-10 kits GM Heritage factory kit — 1986 Chevrolet S 10, p.18. GM Heritage factory kit — 1987 Chevrolet S 10, p.25. GM Heritage factory kit — 1988 Chevrolet S 10, p.36. GM Heritage factory kit — 1989 Chevrolet S 10, p.21. GM Heritage factory kit — 1990 Chevrolet S 10, p.23. | Factory-verified |
| ZK4 | Spare tire, full size, highway | 1983–1985, 1989 | shared S-series code; cited from the joint S-10/S-15 pages of the S-10 kits GM Heritage factory kit — 1983 Chevrolet S 10, p.29. GM Heritage factory kit — 1984 Chevrolet S 10, p.19. GM Heritage factory kit — 1985 Chevrolet S 10, p.25. GM Heritage factory kit — 1989 Chevrolet S 10, p.24. | Factory-verified |
| ZK5 | Spare tire, full size, on-off road | 1983–1985, 1989–1990 | 1990 from the ZM6 requirement remark; shared S-series code; cited from the joint S-10/S-15 pages of the S-10 kits GM Heritage factory kit — 1983 Chevrolet S 10, p.29. GM Heritage factory kit — 1984 Chevrolet S 10, p.19. GM Heritage factory kit — 1985 Chevrolet S 10, p.25. GM Heritage factory kit — 1989 Chevrolet S 10, p.24. GM Heritage factory kit — 1990 Chevrolet S 10, p.23. | Factory-verified |
| Paint | ||||
| ZY1 | Color combination, solid | 1983–1990 | shared S-series code; cited from the joint S-10/S-15 pages of the S-10 kits GM Heritage factory kit — 1983 Chevrolet S 10, p.34. GM Heritage factory kit — 1984 Chevrolet S 10, p.13. GM Heritage factory kit — 1985 Chevrolet S 10, p.20. GM Heritage factory kit — 1986 Chevrolet S 10, p.12. GM Heritage factory kit — 1987 Chevrolet S 10, p.19. GM Heritage factory kit — 1988 Chevrolet S 10, p.30. GM Heritage factory kit — 1989 Chevrolet S 10, p.23. GM Heritage factory kit — 1990 Chevrolet S 10, p.21. | Factory-verified |
| ZY2 | Color combination, conventional two-tone | 1989–1990 | the 1990 chart names it conventional two-tone; the merged S-10 Blazer doc reads its 1989 option page as custom two-tone; shared S-series code; cited from the joint S-10/S-15 pages of the S-10 kits GM Heritage factory kit — 1989 Chevrolet S 10, p.23. GM Heritage factory kit — 1990 Chevrolet S 10, p.21. | Factory-verified |
| ZY3 | Color combination, special two-tone | 1989–1990 | shared S-series code; cited from the joint S-10/S-15 pages of the S-10 kits GM Heritage factory kit — 1989 Chevrolet S 10, p.23. GM Heritage factory kit — 1990 Chevrolet S 10, p.21. | Factory-verified |
| ZY4 | Color combination, deluxe two-tone | 1989–1990 | 1989 from the joint data book's weight page; shared S-series code; cited from the joint S-10/S-15 pages of the S-10 kits GM Heritage factory kit — 1989 Chevrolet S 10, p.20. GM Heritage factory kit — 1990 Chevrolet S 10, p.27. | Factory-verified |
| ZY6 | Color combination, custom two-tone | 1985–1988 | shared S-series code; cited from the joint S-10/S-15 pages of the S-10 kits GM Heritage factory kit — 1985 Chevrolet S 10, p.20. GM Heritage factory kit — 1986 Chevrolet S 10, p.12. GM Heritage factory kit — 1987 Chevrolet S 10, p.19. GM Heritage factory kit — 1988 Chevrolet S 10, p.30. | Factory-verified |
| ZY7 | Color combination, sport two-tone | 1983–1988 | 1986–1987 from the B84 molding price lines with ZY7; shared S-series code; cited from the joint S-10/S-15 pages of the S-10 kits GM Heritage factory kit — 1983 Chevrolet S 10, p.34. GM Heritage factory kit — 1984 Chevrolet S 10, p.13. GM Heritage factory kit — 1985 Chevrolet S 10, p.20. GM Heritage factory kit — 1986 Chevrolet S 10, p.16. GM Heritage factory kit — 1987 Chevrolet S 10, p.23. GM Heritage factory kit — 1988 Chevrolet S 10, p.30. | Factory-verified |
| ZY8 | Color combination, special two-tone | 1983–1988 | 1983–1985 and 1987 from the two-tone paint description pages; shared S-series code; cited from the joint S-10/S-15 pages of the S-10 kits GM Heritage factory kit — 1983 Chevrolet S 10, p.15. GM Heritage factory kit — 1984 Chevrolet S 10, p.33. GM Heritage factory kit — 1985 Chevrolet S 10, p.43. GM Heritage factory kit — 1986 Chevrolet S 10, p.12. GM Heritage factory kit — 1987 Chevrolet S 10, p.47. GM Heritage factory kit — 1988 Chevrolet S 10, p.30. | Factory-verified |
| Internal / Process | ||||
| B3W internal | Price information, preliminary | 1983–1984, 1986–1988 | shared S-series code; cited from the joint S-10/S-15 pages of the S-10 kits GM Heritage factory kit — 1983 Chevrolet S 10, p.30. GM Heritage factory kit — 1984 Chevrolet S 10, p.18. GM Heritage factory kit — 1986 Chevrolet S 10, p.16. GM Heritage factory kit — 1987 Chevrolet S 10, p.23. GM Heritage factory kit — 1988 Chevrolet S 10, p.34. | Factory-verified |
| D60 internal | Color combination, non-recommended | 1986, 1988 | the dealer orders it to verify a color combination the charts mark N/A; the 1983 chart prints D60l (a glyph attached), so 1983 is not claimed; shared S-series code; cited from the joint S-10/S-15 pages of the S-10 kits GM Heritage factory kit — 1986 Chevrolet S 10, p.33. GM Heritage factory kit — 1988 Chevrolet S 10, p.103. | Factory-verified |
| NA5 internal | Emission system, standard | 1983–1988 | 1984 from the MM5 and C3A companion remarks (the own line prints NAS); shared S-series code; cited from the joint S-10/S-15 pages of the S-10 kits GM Heritage factory kit — 1983 Chevrolet S 10, p.38. GM Heritage factory kit — 1984 Chevrolet S 10, p.14. GM Heritage factory kit — 1985 Chevrolet S 10, p.20. GM Heritage factory kit — 1986 Chevrolet S 10, p.8. GM Heritage factory kit — 1987 Chevrolet S 10, p.20. GM Heritage factory kit — 1988 Chevrolet S 10, p.30. | Factory-verified |
| NA6 internal | Emission system, high altitude | 1983–1985, 1987–1989 | 1984 from the C3A companion remark (the own line prints NAG); 1988 from the power team heading for high altitude emissions; 1989 from the joint data book's weight page; shared S-series code; cited from the joint S-10/S-15 pages of the S-10 kits GM Heritage factory kit — 1983 Chevrolet S 10, p.38. GM Heritage factory kit — 1984 Chevrolet S 10, p.18. GM Heritage factory kit — 1985 Chevrolet S 10, p.16. GM Heritage factory kit — 1987 Chevrolet S 10, p.16. GM Heritage factory kit — 1988 Chevrolet S 10, p.80. GM Heritage factory kit — 1989 Chevrolet S 10, p.21. | Factory-verified |
| YF5 internal | Emission system, California | 1983–1986, 1988 | 1984 from a requirement remark; shared S-series code; cited from the joint S-10/S-15 pages of the S-10 kits GM Heritage factory kit — 1983 Chevrolet S 10, p.37. GM Heritage factory kit — 1984 Chevrolet S 10, p.14. GM Heritage factory kit — 1985 Chevrolet S 10, p.17. GM Heritage factory kit — 1986 Chevrolet S 10, p.9. GM Heritage factory kit — 1988 Chevrolet S 10, p.84. | Factory-verified |
Source document: gmc/sonoma-gen1.md. Rows marked — record an option the factory offered whose RPO code is not documented in the consulted sources.