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    Fuzzy match across codes, option descriptions, and model aliases. Every result is graded and, where the factory documents it, cited.

    Source document

    docs/rpo/chevrolet/blazer-k5-squarebody.md

    Interactive view →

    Rendered verbatim from the reference. Factory citations shown as ⛭ GM Heritage — …. For filtering, badges, and crosslinks, use the interactive Blazer (full-size, K5) — Square body (1983–1991) page.

    Chevrolet Blazer (full-size, K5) — Square body (R/V from 1987) (1983–1991)

    The Heritage kit order guides show this truck as the K Blazer/Jimmy for 1983–1986, one K10/1500 four-wheel-drive utility model (CK10516) with a removable top (white or black top body codes Z58 and Z59 in 1983–1984, body code ZW9 from 1985), and as the V Blazer/Jimmy (1990) and V Blazer (1991) V10516/ZW9; the Silverado model option (YE9) sits above the standard Custom Deluxe (1983–1986) or Scottsdale (1990–1991) trim. Engines are the 4 barrel 5.0L V8 (LE9) and the California-only 4 barrel 5.7L V8 (LS9) to 1986, the fuel-injected 5.7L V8 (L05) in 1988 (named on one 1988 truck engine data page) and 1990–1991, and the 6.2L diesel (LH6) with the B3J diesel equipment, with the 4 speed manual (MM4) or the 4 speed automatic with overdrive (MX0). The 1983–1986 books are joint Chevrolet and GMC books ("K Blazer/Jimmy", "Silverado/Sierra Classic"), and the 1990 book covers the V Blazer/Jimmy, so their codes are shared with the GMC Jimmy. There is no full-size Blazer kit for 1987–1989 (the 1989 "Blazer" kit is the S/T Blazer book): no code is claimed for 1987 or 1989, and 1988 rests on the 1988 truck engine data pages, which list L05 and LH6 as standard on the V10/1500 Blazer/Jimmy. NICB's 1987 VIN manual counts C/K Chevrolet Blazers in its conventional cab lines and gives body type 8 to the utility (Blazer and Jimmy); its 1990 manual names R/V Blazers. Tire codes, seat trims, paint colors and top colors are not listed here.

    Codes

    Engines

    Code Description Years Models/Notes Confidence
    L05 Engine, 5.7L V8, electronic fuel injection 1988, 1990, 1991 standard; 1988 from the 1988 truck engine data page, which lists it as standard on the V10/1500 Blazer/Jimmy; the 1990 powertrain page prints LOS and LD5 and the 1991 page also prints LO5 ⛭ GM Heritage — 1988 Chevrolet Truck, p.41 · 1990 Chevrolet Blazer, p.15 · 1991 Chevrolet Blazer, p.5 confirmed
    LE9 Engine, 5.0L V8, 4 barrel 1983–1986 standard gasoline engine (305 cu in); the 1984 price page prints LES ⛭ GM Heritage — 1983 Chevrolet Blazer, p.8 · 1984 Chevrolet Blazer RV Full Size, p.4 · 1985 Chevrolet Blazer RV Full Size, p.10 · 1986 Chevrolet Blazer, p.10 confirmed
    LH6 Engine, diesel, 6.2L V8 1983–1986, 1988, 1990, 1991 light duty 6.2 liter (379 cu in) diesel; requires B3J diesel equipment and MX0; 1988 from the 1988 truck engine data page, which lists it as standard on the V10/1500 Blazer/Jimmy diesel; the 1990–1991 pages mark it not available in California ⛭ GM Heritage — 1983 Chevrolet Blazer, p.8 · 1984 Chevrolet Blazer RV Full Size, p.16 · 1985 Chevrolet Blazer RV Full Size, p.10 · 1986 Chevrolet Blazer, p.10 · 1988 Chevrolet Truck, p.49 · 1990 Chevrolet Blazer, p.15 · 1991 Chevrolet Blazer, p.15 confirmed
    LS9 Engine, 5.7L V8, 4 barrel 1983–1986 only with YF5 California emissions ⛭ GM Heritage — 1983 Chevrolet Blazer, p.8 · 1984 Chevrolet Blazer RV Full Size, p.4 · 1985 Chevrolet Blazer RV Full Size, p.10 · 1986 Chevrolet Blazer, p.10 confirmed

    Transmissions

    Code Description Years Models/Notes Confidence
    MM4 Transmission, manual, 4 speed 1983–1986, 1990, 1991 not with B3J diesel equipment or LS9; the 1990–1991 powertrain pages name the SM465 gearbox; the 1990–1991 option pages print MM42 with a footnote mark ⛭ GM Heritage — 1983 Chevrolet Blazer, p.4 · 1984 Chevrolet Blazer RV Full Size, p.4 · 1985 Chevrolet Blazer RV Full Size, p.6 · 1986 Chevrolet Blazer, p.10 · 1990 Chevrolet Blazer, p.6 · 1991 Chevrolet Blazer, p.6 confirmed
    MX0 Transmission, 4 speed automatic, overdrive 1983–1986, 1990, 1991 required with the LH6 diesel; the 1990 powertrain page names the 700R4 gearbox; the kit pages print MXO (the 1990 power team chart also prints MX0) ⛭ GM Heritage — 1983 Chevrolet Blazer, p.4 · 1984 Chevrolet Blazer RV Full Size, p.16 · 1985 Chevrolet Blazer RV Full Size, p.6 · 1986 Chevrolet Blazer, p.10 · 1990 Chevrolet Blazer, p.6 · 1991 Chevrolet Blazer, p.16 confirmed

    Axles

    Code Description Years Models/Notes Confidence
    G80 Axle, rear, locking differential 1983–1986, 1990 the kits print it as the locking differential; the GMT400 doc reads it from GM lists as Positraction; the 1983–1986 price pages print G8O; the 1991 option page prints GaO, so 1991 is left out ⛭ GM Heritage — 1983 Chevrolet Blazer, p.8 · 1984 Chevrolet Blazer RV Full Size, p.5 · 1985 Chevrolet Blazer RV Full Size, p.10 · 1986 Chevrolet Blazer, p.10 · 1990 Chevrolet Blazer, p.15 confirmed
    GQ1 Axle, rear, standard ratio 1983–1986 the power team charts print it in every team; the wording is GM's own list wording (the S-10 Blazer and GMT400 Blazer docs); 73-87.com also reads it as the standard (non-Positraction) rear axle ⛭ GM Heritage — 1983 Chevrolet Blazer, p.4 · 1984 Chevrolet Blazer RV Full Size, p.4 · 1985 Chevrolet Blazer RV Full Size, p.6 · 1986 Chevrolet Blazer, p.6 confirmed
    GT4 Axle, rear, 3.73 ratio 1983–1986 power team charts only ⛭ GM Heritage — 1983 Chevrolet Blazer, p.4 · 1984 Chevrolet Blazer RV Full Size, p.4 · 1985 Chevrolet Blazer RV Full Size, p.6 · 1986 Chevrolet Blazer, p.6 confirmed
    GU4 Axle, rear, 3.08 ratio 1983–1986 power team charts only ⛭ GM Heritage — 1983 Chevrolet Blazer, p.4 · 1984 Chevrolet Blazer RV Full Size, p.4 · 1985 Chevrolet Blazer RV Full Size, p.6 · 1986 Chevrolet Blazer, p.6 confirmed
    GU6 Axle, rear, 3.42 ratio 1983–1986 power team charts only ⛭ GM Heritage — 1983 Chevrolet Blazer, p.4 · 1984 Chevrolet Blazer RV Full Size, p.4 · 1985 Chevrolet Blazer RV Full Size, p.6 · 1986 Chevrolet Blazer, p.6 confirmed

    Packages & Trims

    Code Description Years Models/Notes Confidence
    V22 Appearance package, deluxe front 1983–1986 dark argent grille with bright trim and dual rectangular headlamps; included with YE9; the GMT400 doc reads it from GM lists as a chrome radiator grille ⛭ GM Heritage — 1983 Chevrolet Blazer, p.9 · 1984 Chevrolet Blazer RV Full Size, p.5 · 1985 Chevrolet Blazer RV Full Size, p.11 · 1986 Chevrolet Blazer, p.11 confirmed
    YE9 Decor package, Silverado 1983–1986, 1990, 1991 the kits name it the Silverado model option (1983–1986) and the Silverado trim level (1990–1991; the 1990 page names it Silverado/SLE); the GMT400 doc reads it from GM lists as comfort and decor level 3; the 1984 price page prints YEO ⛭ GM Heritage — 1983 Chevrolet Blazer, p.7 · 1984 Chevrolet Blazer RV Full Size, p.6 · 1985 Chevrolet Blazer RV Full Size, p.9 · 1986 Chevrolet Blazer, p.9 · 1990 Chevrolet Blazer, p.16 · 1991 Chevrolet Blazer, p.16 confirmed
    YG1 Molding package, custom 1983–1986 includes B84 black body side moldings and wheel opening moldings; included with ZY3 and ZY5; the 1984 page prints YGI ⛭ GM Heritage — 1983 Chevrolet Blazer, p.10 · 1984 Chevrolet Blazer RV Full Size, p.18 · 1985 Chevrolet Blazer RV Full Size, p.12 · 1986 Chevrolet Blazer, p.12 confirmed
    YG3 Molding package, deluxe 1983–1986 includes B85 bright body side moldings and wheel opening moldings; included with YE9 ⛭ GM Heritage — 1983 Chevrolet Blazer, p.10 · 1984 Chevrolet Blazer RV Full Size, p.19 · 1985 Chevrolet Blazer RV Full Size, p.12 · 1986 Chevrolet Blazer, p.12 confirmed
    ZQ2 Operating convenience package 1983–1986 includes AU3 power door locks and A31 power windows; the 1983, 1985 and 1986 option lines print the code as z02 or Z02, so those years cite the pages that print ZQ2 in the power window (1983) or power door lock (1985, 1986) cross-reference; the 1991 page prints z02 only, so 1991 is left out ⛭ GM Heritage — 1983 Chevrolet Blazer, p.11 · 1984 Chevrolet Blazer RV Full Size, p.6 · 1985 Chevrolet Blazer RV Full Size, p.11 · 1986 Chevrolet Blazer, p.11 confirmed

    Equipment

    Code Description Years Models/Notes Confidence
    A31 Window, power 1983–1986 side doors; included with ZQ2; the 1986 page (p.13) prints A31 only in the ZQ2 contents (the 1986 power window line on p.14 has no legible code) ⛭ GM Heritage — 1983 Chevrolet Blazer, p.11 · 1984 Chevrolet Blazer RV Full Size, p.6 · 1985 Chevrolet Blazer RV Full Size, p.13 · 1986 Chevrolet Blazer, p.13 confirmed
    A33 Window, power, tailgate 1983–1985 electric tailgate window ⛭ GM Heritage — 1983 Chevrolet Blazer, p.11 · 1984 Chevrolet Blazer RV Full Size, p.6 · 1985 Chevrolet Blazer RV Full Size, p.13 confirmed
    AA3 Glass, deep tinted, light tinted rear window 1984, 1986 deep tinted laminated side window glass with tinted tailgate and side door glass; included with AJ1; the 1983 (p.9) and 1985 (p.11) OCR text prints the code with Cyrillic letters, so those years are left out ⛭ GM Heritage — 1984 Chevrolet Blazer RV Full Size, p.5 · 1986 Chevrolet Blazer, p.12 confirmed
    AD5 Window, sliding side quarter 1983–1986, 1990 the 1991 page prints ADS, so 1991 is left out ⛭ GM Heritage — 1983 Chevrolet Blazer, p.9 · 1984 Chevrolet Blazer RV Full Size, p.6 · 1985 Chevrolet Blazer RV Full Size, p.13 · 1986 Chevrolet Blazer, p.14 · 1990 Chevrolet Blazer, p.16 confirmed
    AJ1 Glass, deep tinted 1983–1986, 1990, 1991 the 1983–1986 pages describe dark laminated side window and tailgate glass, the 1990–1991 pages a deep tinted rear window; the 1990 page prints AJI ⛭ GM Heritage — 1983 Chevrolet Blazer, p.9 · 1984 Chevrolet Blazer RV Full Size, p.5 · 1985 Chevrolet Blazer RV Full Size, p.11 · 1986 Chevrolet Blazer, p.12 · 1990 Chevrolet Blazer, p.15 · 1991 Chevrolet Blazer, p.15 confirmed
    AK9 Belts, shoulder, rear seat 1990 requires AM7; the 1991 OCR text prints the code with a Cyrillic A, so 1991 is left out ⛭ GM Heritage — 1990 Chevrolet Blazer, p.16 confirmed
    AM7 Seat, rear, folding, 3 passenger 1983–1986, 1990, 1991 forward folding; one of AM7 or YG4 must be ordered ⛭ GM Heritage — 1983 Chevrolet Blazer, p.10 · 1984 Chevrolet Blazer RV Full Size, p.6 · 1985 Chevrolet Blazer RV Full Size, p.12 · 1986 Chevrolet Blazer, p.13 · 1990 Chevrolet Blazer, p.16 · 1991 Chevrolet Blazer, p.16 confirmed
    AU3 Locks, power door 1983–1986 included with ZQ2 ⛭ GM Heritage — 1983 Chevrolet Blazer, p.9 · 1984 Chevrolet Blazer RV Full Size, p.18 · 1985 Chevrolet Blazer RV Full Size, p.11 · 1986 Chevrolet Blazer, p.11 confirmed
    B32 Floor mats, front, color-keyed 1983–1986 only with custom vinyl or cloth interior ⛭ GM Heritage — 1983 Chevrolet Blazer, p.9 · 1984 Chevrolet Blazer RV Full Size, p.5 · 1985 Chevrolet Blazer RV Full Size, p.11 · 1986 Chevrolet Blazer, p.11 confirmed
    B33 Floor mat, rear, color-keyed, one piece 1986 ⛭ GM Heritage — 1986 Chevrolet Blazer, p.11 confirmed
    B3J Equipment, diesel 1983–1986, 1990, 1991 required with the LH6 diesel; the 1984–1991 kits print it with the body code of the diesel model (Z58/B3J, Z59/B3J, ZW9/B3J) ⛭ GM Heritage — 1983 Chevrolet Blazer, p.9 · 1984 Chevrolet Blazer RV Full Size, p.11 · 1985 Chevrolet Blazer RV Full Size, p.9 · 1986 Chevrolet Blazer, p.9 · 1990 Chevrolet Blazer, p.8 · 1991 Chevrolet Blazer, p.11 confirmed
    B84 Moldings, body side, black 1983–1986 bright with black insert; included with YG1, ZY3 and ZY5 ⛭ GM Heritage — 1983 Chevrolet Blazer, p.10 · 1984 Chevrolet Blazer RV Full Size, p.6 · 1985 Chevrolet Blazer RV Full Size, p.12 · 1986 Chevrolet Blazer, p.12 confirmed
    B85 Moldings, body side, bright 1983–1986 included with YG3 and YE9; the 1984 order guide (p.6) prints the code in its moldings list without its wording, and the 1984 price page (p.18) prints 885 ⛭ GM Heritage — 1983 Chevrolet Blazer, p.10 · 1984 Chevrolet Blazer RV Full Size, p.6 · 1985 Chevrolet Blazer RV Full Size, p.12 · 1986 Chevrolet Blazer, p.12 confirmed
    B93 Guards, door edge 1984–1986, 1991 the 1983 page (p.10) prints 893, so 1983 is left out ⛭ GM Heritage — 1984 Chevrolet Blazer RV Full Size, p.6 · 1985 Chevrolet Blazer RV Full Size, p.12 · 1986 Chevrolet Blazer, p.13 · 1991 Chevrolet Blazer, p.15 confirmed
    BB5 Headliner, interior 1983–1986 included with YE9 ⛭ GM Heritage — 1983 Chevrolet Blazer, p.10 · 1984 Chevrolet Blazer RV Full Size, p.6 · 1985 Chevrolet Blazer RV Full Size, p.11 · 1986 Chevrolet Blazer, p.12 confirmed
    C42 Heater, front, heavy duty 1984–1986 only with B3J diesel equipment; not with C60; the 1983 page prints the heater line without a code ⛭ GM Heritage — 1984 Chevrolet Blazer RV Full Size, p.6 · 1985 Chevrolet Blazer RV Full Size, p.11 · 1986 Chevrolet Blazer, p.12 confirmed
    C60 Air conditioning, All-Weather 1983–1986, 1990, 1991 not with V10; the 1990–1991 kits print it as air conditioning with a 100 amp alternator; 1990 from the cooling page, which prints the code beside the optional air conditioning radiator (the 1990 option line has no legible code); the GMT400 doc reads it from GM lists as front air conditioning ⛭ GM Heritage — 1983 Chevrolet Blazer, p.9 · 1984 Chevrolet Blazer RV Full Size, p.5 · 1985 Chevrolet Blazer RV Full Size, p.11 · 1986 Chevrolet Blazer, p.11 · 1990 Chevrolet Blazer, p.13 · 1991 Chevrolet Blazer, p.15 confirmed
    CD4 Wipers, windshield, intermittent 1983–1986 the 1990 trim page lists intermittent wipers as standard ⛭ GM Heritage — 1983 Chevrolet Blazer, p.11 · 1984 Chevrolet Blazer RV Full Size, p.6 · 1985 Chevrolet Blazer RV Full Size, p.13 · 1986 Chevrolet Blazer, p.14 confirmed
    D44 Mirror, outside, below eye line, painted 1984 9 x 6.5 inch, left-hand and right-hand ⛭ GM Heritage — 1984 Chevrolet Blazer RV Full Size, p.6 confirmed
    D45 Mirror, outside, below eye line, stainless steel 1984, 1990 9 x 6.5 inch, left-hand and right-hand ⛭ GM Heritage — 1984 Chevrolet Blazer RV Full Size, p.6 · 1990 Chevrolet Blazer, p.15 confirmed
    D48 Mirror, outside, remote control, electric 1990, 1991 6.5 x 9.0 inch; the 1991 page requires ZQ2 and YE9 ⛭ GM Heritage — 1990 Chevrolet Blazer, p.15 · 1991 Chevrolet Blazer, p.15 confirmed
    F60 Spring, front, heavy duty 1984–1986, 1990, 1991 2250 lb each; includes heavy duty front and rear shock absorbers; for snowplow use (1984–1986) or front mounted accessories (1990–1991) ⛭ GM Heritage — 1984 Chevrolet Blazer RV Full Size, p.6 · 1985 Chevrolet Blazer RV Full Size, p.12 · 1986 Chevrolet Blazer, p.13 · 1990 Chevrolet Blazer, p.16 · 1991 Chevrolet Blazer, p.16 confirmed
    K05 Heater, engine block 1983–1986 600 watt, 120 volt; not with B3J diesel equipment; included with V10; the 1983 and 1985 pages print KO5 ⛭ GM Heritage — 1983 Chevrolet Blazer, p.9 · 1984 Chevrolet Blazer RV Full Size, p.6 · 1985 Chevrolet Blazer RV Full Size, p.11 · 1986 Chevrolet Blazer, p.12 confirmed
    K34 Speed control, electronic 1983–1986 ⛭ GM Heritage — 1983 Chevrolet Blazer, p.10 · 1984 Chevrolet Blazer RV Full Size, p.6 · 1985 Chevrolet Blazer RV Full Size, p.12 · 1986 Chevrolet Blazer, p.13 confirmed
    K46 Air cleaner, pre-cleaner 1983–1986 ⛭ GM Heritage — 1983 Chevrolet Blazer, p.9 · 1984 Chevrolet Blazer RV Full Size, p.5 · 1985 Chevrolet Blazer RV Full Size, p.11 · 1986 Chevrolet Blazer, p.11 confirmed
    K81 Generator, 66 amp 1983–1986 included with B3J, Z82, V10 and C60 ⛭ GM Heritage — 1983 Chevrolet Blazer, p.9 · 1984 Chevrolet Blazer RV Full Size, p.18 · 1985 Chevrolet Blazer RV Full Size, p.11 · 1986 Chevrolet Blazer, p.12 confirmed
    KC4 Cooling system, engine oil 1983–1986, 1990, 1991 the kits print it as the engine oil cooler; not with B3J diesel equipment; included with Z82; the 1984 option line prints KCA and the 1990 option line KC+, so 1984, 1990 and 1991 cite the pages that print KC4 only in the Z82 contents ⛭ GM Heritage — 1983 Chevrolet Blazer, p.9 · 1984 Chevrolet Blazer RV Full Size, p.20 · 1985 Chevrolet Blazer RV Full Size, p.11 · 1986 Chevrolet Blazer, p.11 · 1990 Chevrolet Blazer, p.16 · 1991 Chevrolet Blazer, p.16 confirmed
    N33 Steering wheel, Comfortilt 1983–1986 ⛭ GM Heritage — 1983 Chevrolet Blazer, p.11 · 1984 Chevrolet Blazer RV Full Size, p.6 · 1985 Chevrolet Blazer RV Full Size, p.12 · 1986 Chevrolet Blazer, p.13 confirmed
    N67 Wheels, rally 1983–1986, 1990, 1991 15 x 8 steel wheels with trim rings and hub caps; not with P215 tires; the 1983 and 1986 pages print N67 only in the tire notes (their rally wheel lines have no code) ⛭ GM Heritage — 1983 Chevrolet Blazer, p.8 · 1984 Chevrolet Blazer RV Full Size, p.6 · 1985 Chevrolet Blazer RV Full Size, p.13 · 1986 Chevrolet Blazer, p.10 · 1990 Chevrolet Blazer, p.16 · 1991 Chevrolet Blazer, p.16 confirmed
    N90 Wheels, aluminum, cast 1985, 1986, 1990, 1991 four 15 x 7 wheels with special hub caps; the 1990–1991 pages add a steel spare wheel ⛭ GM Heritage — 1985 Chevrolet Blazer RV Full Size, p.13 · 1986 Chevrolet Blazer, p.14 · 1990 Chevrolet Blazer, p.16 · 1991 Chevrolet Blazer, p.16 confirmed
    NK7 Fuel tank, approximately 31 gallon 1983–1986 about 31 gallons with gasoline engines and 32 gallons with the diesel; replaces the production tank ⛭ GM Heritage — 1983 Chevrolet Blazer, p.11 · 1984 Chevrolet Blazer RV Full Size, p.6 · 1985 Chevrolet Blazer RV Full Size, p.12 · 1986 Chevrolet Blazer, p.13 confirmed
    NY1 Shield, fuel tank 1983–1986, 1991 includes a transfer case shield; the 1990 page prints VYI, so 1990 is left out ⛭ GM Heritage — 1983 Chevrolet Blazer, p.10 · 1984 Chevrolet Blazer RV Full Size, p.6 · 1985 Chevrolet Blazer RV Full Size, p.12 · 1986 Chevrolet Blazer, p.13 · 1991 Chevrolet Blazer, p.16 confirmed
    P01 Wheel covers, bright metal 1983–1986, 1990, 1991 front units have hub clearance holes; the 1990 page includes them with YE9; not with N67 or N90 (1990–1991); the kit pages print PO1 ⛭ GM Heritage — 1983 Chevrolet Blazer, p.11 · 1984 Chevrolet Blazer RV Full Size, p.20 · 1985 Chevrolet Blazer RV Full Size, p.13 · 1986 Chevrolet Blazer, p.14 · 1990 Chevrolet Blazer, p.16 · 1991 Chevrolet Blazer, p.16 confirmed
    PA6 Wheels, styled 1983–1986 four 15 x 8 wheels; not with P215 tires; the 1983 and 1986 pages print PA6 only in the tire notes (their styled wheel lines have no code) ⛭ GM Heritage — 1983 Chevrolet Blazer, p.8 · 1984 Chevrolet Blazer RV Full Size, p.6 · 1985 Chevrolet Blazer RV Full Size, p.13 · 1986 Chevrolet Blazer, p.10 confirmed
    T63 Buzzer, headlamp warning 1983–1986 the 1990 trim page lists the headlamp warning buzzer as standard ⛭ GM Heritage — 1983 Chevrolet Blazer, p.10 · 1984 Chevrolet Blazer RV Full Size, p.6 · 1985 Chevrolet Blazer RV Full Size, p.11 · 1986 Chevrolet Blazer, p.12 confirmed
    TT4 Headlamps, halogen 1983 the 1983 option line prints Halogen Hi-Beam; not with V22, TT5 or YE9 ⛭ GM Heritage — 1983 Chevrolet Blazer, p.9 confirmed
    TT5 Headlamps, halogen high beam 1983–1986 only with V22 or YE9 ⛭ GM Heritage — 1983 Chevrolet Blazer, p.9 · 1984 Chevrolet Blazer RV Full Size, p.6 · 1985 Chevrolet Blazer RV Full Size, p.11 · 1986 Chevrolet Blazer, p.12 confirmed
    U35 Clock, electric, quartz 1983–1986 includes Z53 gages without YE9; the 1986 page rules it out with UM6 ⛭ GM Heritage — 1983 Chevrolet Blazer, p.9 · 1984 Chevrolet Blazer RV Full Size, p.5 · 1985 Chevrolet Blazer RV Full Size, p.11 · 1986 Chevrolet Blazer, p.11 confirmed
    U37 Lighter, cigarette 1983–1986 included with YE9; the 1983 page (p.7) prints U37 only in the YE9 contents (the 1983 lighter line on p.10 has no code) ⛭ GM Heritage — 1983 Chevrolet Blazer, p.7 · 1984 Chevrolet Blazer RV Full Size, p.5 · 1985 Chevrolet Blazer RV Full Size, p.12 · 1986 Chevrolet Blazer, p.12 confirmed
    U58 Radio, AM/FM stereo 1983–1986 only with YE9 ⛭ GM Heritage — 1983 Chevrolet Blazer, p.10 · 1984 Chevrolet Blazer RV Full Size, p.6 · 1985 Chevrolet Blazer RV Full Size, p.12 · 1986 Chevrolet Blazer, p.13 confirmed
    U63 Radio, AM 1983–1986 the 1990 trim page lists an AM radio as standard on Chevrolet models ⛭ GM Heritage — 1983 Chevrolet Blazer, p.10 · 1984 Chevrolet Blazer RV Full Size, p.6 · 1985 Chevrolet Blazer RV Full Size, p.12 · 1986 Chevrolet Blazer, p.13 confirmed
    U69 Radio, AM/FM 1983–1986 ⛭ GM Heritage — 1983 Chevrolet Blazer, p.10 · 1984 Chevrolet Blazer RV Full Size, p.6 · 1985 Chevrolet Blazer RV Full Size, p.12 · 1986 Chevrolet Blazer, p.13 confirmed
    U76 Antenna, windshield 1984, 1985 included with the radios ⛭ GM Heritage — 1984 Chevrolet Blazer RV Full Size, p.6 · 1985 Chevrolet Blazer RV Full Size, p.12 confirmed
    UA1 Battery, heavy duty 1983–1986 515 cold cranking amps; not with B3J diesel equipment; included with V10; the 1985 and 1986 pages print UAI ⛭ GM Heritage — 1983 Chevrolet Blazer, p.9 · 1984 Chevrolet Blazer RV Full Size, p.5 · 1985 Chevrolet Blazer RV Full Size, p.11 · 1986 Chevrolet Blazer, p.11 confirmed
    UL5 Radio, delete 1991 the 1990 page prints the radio delete line as ULS, so 1990 is left out ⛭ GM Heritage — 1991 Chevrolet Blazer, p.15 confirmed
    UM6 Radio, AM/FM stereo, electronically tuned, seek and scan, cassette tape, digital clock 1986, 1990 requires YE9 (1990); the 1986 page (p.11) prints UM6 only in the U35 clock cross-reference (the 1986 radio line on p.13 has no legible code); the 1991 page prints this radio without a legible code ⛭ GM Heritage — 1986 Chevrolet Blazer, p.11 · 1990 Chevrolet Blazer, p.15 confirmed
    UM7 Radio, AM/FM stereo, electronically tuned, seek and scan, digital clock 1991 includes a mast antenna ⛭ GM Heritage — 1991 Chevrolet Blazer, p.15 confirmed
    UN3 Radio, AM/FM stereo, cassette tape 1983–1986 only with YE9 ⛭ GM Heritage — 1983 Chevrolet Blazer, p.10 · 1984 Chevrolet Blazer RV Full Size, p.6 · 1985 Chevrolet Blazer RV Full Size, p.12 · 1986 Chevrolet Blazer, p.13 confirmed
    UX1 Radio, AM/FM stereo, electronically tuned, seek and scan, cassette tape, search and repeat, graphic equalizer, digital clock 1990, 1991 requires YE9; the kit descriptions are partly illegible (the 1990 page shows the graphic equalizer, repeat and digital clock words); the GMT400 docs read it from GM lists as '..., cassette, search and repeat, graphic equalizer, clock, ETR'; the 1990 page prints UXI ⛭ GM Heritage — 1990 Chevrolet Blazer, p.15 · 1991 Chevrolet Blazer, p.15 confirmed
    UY7 Wiring harness, trailer, heavy duty 1984–1986, 1990, 1991 7 lead; included with Z82; the 1986 and 1991 option lines print UYT, so those years cite the pages that print UY7 only in the Z82 contents (the 1983 page prints UYT only, so 1983 is left out) ⛭ GM Heritage — 1984 Chevrolet Blazer RV Full Size, p.5 · 1985 Chevrolet Blazer RV Full Size, p.11 · 1986 Chevrolet Blazer, p.14 · 1990 Chevrolet Blazer, p.15 · 1991 Chevrolet Blazer, p.16 confirmed
    V01 Radiator, heavy duty 1983–1986, 1990, 1991 not with C60 or B3J; 1990 and 1991 from the cooling pages, which print the code beside the optional heavy duty radiator; the kit pages also print VO1, Vo1 ⛭ GM Heritage — 1983 Chevrolet Blazer, p.9 · 1984 Chevrolet Blazer RV Full Size, p.18 · 1985 Chevrolet Blazer RV Full Size, p.11 · 1986 Chevrolet Blazer, p.11 · 1990 Chevrolet Blazer, p.13 · 1991 Chevrolet Blazer, p.13 confirmed
    V02 Radiator and transmission oil cooler, heavy duty 1983–1986, 1990, 1991 not with MM4; included with Z82; the 1983 and 1984 pages call it a transmission oil cooler; 1991 from the cooling page; the kit pages also print VO2 ⛭ GM Heritage — 1983 Chevrolet Blazer, p.9 · 1984 Chevrolet Blazer RV Full Size, p.17 · 1985 Chevrolet Blazer RV Full Size, p.11 · 1986 Chevrolet Blazer, p.11 · 1990 Chevrolet Blazer, p.15 · 1991 Chevrolet Blazer, p.13 confirmed
    V10 Package, cold climate 1983–1986, 1990, 1991 includes special insulation, a special heater and defroster, K05 engine block heater and UA1 heavy duty battery; not with C60 or B3J; the GMT400 doc reads it from GM lists as cold climate provisions; the 1985 page (p.11) prints V10 only in the C60 cross-reference (the 1985 Cold-Climate Package line has no code); the 1990 page prints V1O ⛭ GM Heritage — 1983 Chevrolet Blazer, p.9 · 1984 Chevrolet Blazer RV Full Size, p.5 · 1985 Chevrolet Blazer RV Full Size, p.11 · 1986 Chevrolet Blazer, p.11 · 1990 Chevrolet Blazer, p.15 · 1991 Chevrolet Blazer, p.15 confirmed
    V31 Guards, front bumper, chromed 1983–1986 not with VE5; the 1985 page (p.11) prints V31 only in the VE5 cross-reference (the 1985 bumper guard line has no code) ⛭ GM Heritage — 1983 Chevrolet Blazer, p.9 · 1984 Chevrolet Blazer RV Full Size, p.5 · 1985 Chevrolet Blazer RV Full Size, p.11 · 1986 Chevrolet Blazer, p.11 confirmed
    V76 Tow hooks, front 1983–1986 the 1990 trim page lists front tow hooks as standard ⛭ GM Heritage — 1983 Chevrolet Blazer, p.11 · 1984 Chevrolet Blazer RV Full Size, p.6 · 1985 Chevrolet Blazer RV Full Size, p.13 · 1986 Chevrolet Blazer, p.13 confirmed
    VE5 Bumpers, front and rear, deluxe chromed 1983, 1984, 1986 includes black resilient impact strips; not with V31; the 1985 bumper line has no code ⛭ GM Heritage — 1983 Chevrolet Blazer, p.9 · 1984 Chevrolet Blazer RV Full Size, p.5 · 1986 Chevrolet Blazer, p.11 confirmed
    VR2 Trailer hitch, deadweight type 1983–1986 not with Z82 ⛭ GM Heritage — 1983 Chevrolet Blazer, p.11 · 1984 Chevrolet Blazer RV Full Size, p.19 · 1985 Chevrolet Blazer RV Full Size, p.13 · 1986 Chevrolet Blazer, p.13 confirmed
    VR4 Trailer hitch, weight distributing platform 1983–1986, 1990, 1991 included with Z82; the 1984 and 1991 hitch lines have no legible code (1984 p.19 prints VRA), so those years cite the pages that print VR4 only in the Z82 contents ⛭ GM Heritage — 1983 Chevrolet Blazer, p.11 · 1984 Chevrolet Blazer RV Full Size, p.20 · 1985 Chevrolet Blazer RV Full Size, p.13 · 1986 Chevrolet Blazer, p.13 · 1990 Chevrolet Blazer, p.16 · 1991 Chevrolet Blazer, p.16 confirmed
    X6Z Hubs, automatic locking 1991 the 1986 (XEZ) and 1990 (XGZ) pages print the automatic locking hub line in forms that are not accepted readings, so those years are left out ⛭ GM Heritage — 1991 Chevrolet Blazer, p.15 confirmed
    YG4 Seats, optional, not desired 1983–1986, 1990, 1991 the kits print it as rear seat not desired, at no charge; one of AM7 or YG4 must be ordered; the C/K square-body pickup doc reads YG4 from the pickup kits as the bonus cab body code ⛭ GM Heritage — 1983 Chevrolet Blazer, p.10 · 1984 Chevrolet Blazer RV Full Size, p.6 · 1985 Chevrolet Blazer RV Full Size, p.12 · 1986 Chevrolet Blazer, p.13 · 1990 Chevrolet Blazer, p.16 · 1991 Chevrolet Blazer, p.16 confirmed
    Z53 Gages, voltmeter, temperature and oil pressure 1983–1986 included with YE9 and U35 ⛭ GM Heritage — 1983 Chevrolet Blazer, p.9 · 1984 Chevrolet Blazer RV Full Size, p.5 · 1985 Chevrolet Blazer RV Full Size, p.11 · 1986 Chevrolet Blazer, p.12 confirmed
    Z58 Body, removable hardtop, white 1983, 1984 body ordering code of the K10516 utility with a white top ⛭ GM Heritage — 1983 Chevrolet Blazer, p.1 · 1984 Chevrolet Blazer RV Full Size, p.10 confirmed
    Z59 Body, removable hardtop, black 1983, 1984 body ordering code of the K10516 utility with a black top ⛭ GM Heritage — 1983 Chevrolet Blazer, p.1 · 1984 Chevrolet Blazer RV Full Size, p.10 confirmed
    Z75 Shock absorbers, front, quad 1983–1986 includes heavy duty rear shocks and a front axle bumper; the 1983 (p.10) and 1985 (p.12) option lines print 275, so those years cite the same pages, which print Z75 in the F60 spring lines; the 1990 and 1991 pages print 775 and 275, so those years are left out ⛭ GM Heritage — 1983 Chevrolet Blazer, p.10 · 1984 Chevrolet Blazer RV Full Size, p.6 · 1985 Chevrolet Blazer RV Full Size, p.12 · 1986 Chevrolet Blazer, p.13 confirmed
    Z82 Trailer provisions, special equipment, heavy duty 1983–1986, 1990, 1991 the kits print it as the trailering special; includes VR4 hitch platform, UY7 wiring harness and V02 cooler; requires a 3.42 or 3.73 axle and MX0; the 1984 option line prints 282 and the 1991 trailering line has no code, so those years cite the pages that print Z82 only in cross-references (1984 V10 line, 1991 V02 line) ⛭ GM Heritage — 1983 Chevrolet Blazer, p.11 · 1984 Chevrolet Blazer RV Full Size, p.17 · 1985 Chevrolet Blazer RV Full Size, p.13 · 1986 Chevrolet Blazer, p.14 · 1990 Chevrolet Blazer, p.16 · 1991 Chevrolet Blazer, p.15 confirmed
    ZW9 Body equipment, base body or chassis cab 1985, 1986, 1990, 1991 the kits print it as the body ordering code of the utility model (K10516 in 1985–1986, V10516 in 1990–1991), with B3J for the diesel ⛭ GM Heritage — 1985 Chevrolet Blazer RV Full Size, p.4 · 1986 Chevrolet Blazer, p.4 · 1990 Chevrolet Blazer, p.2 · 1991 Chevrolet Blazer, p.2 confirmed

    Paint

    Code Description Years Models/Notes Confidence
    ZY1 Color combination, solid 1983–1986, 1990, 1991 ⛭ GM Heritage — 1983 Chevrolet Blazer, p.7 · 1984 Chevrolet Blazer RV Full Size, p.15 · 1985 Chevrolet Blazer RV Full Size, p.9 · 1986 Chevrolet Blazer, p.9 · 1990 Chevrolet Blazer, p.15 · 1991 Chevrolet Blazer, p.17 confirmed
    ZY2 Color combination, conventional two-tone 1990, 1991 includes the YG3 molding package ⛭ GM Heritage — 1990 Chevrolet Blazer, p.15 · 1991 Chevrolet Blazer, p.18 confirmed
    ZY3 Color combination, special two-tone 1983–1986, 1990, 1991 includes the YG1 molding package without YE9 (1983–1986) ⛭ GM Heritage — 1983 Chevrolet Blazer, p.7 · 1984 Chevrolet Blazer RV Full Size, p.15 · 1985 Chevrolet Blazer RV Full Size, p.22 · 1986 Chevrolet Blazer, p.9 · 1990 Chevrolet Blazer, p.15 · 1991 Chevrolet Blazer, p.15 confirmed
    ZY4 Color combination, deluxe two-tone 1990, 1991 ⛭ GM Heritage — 1990 Chevrolet Blazer, p.15 · 1991 Chevrolet Blazer, p.15 confirmed
    ZY5 Color combination, exterior decor package, two-tone with striping 1983–1986 dual-tone body side and rear decal striping and a hood ornament ⛭ GM Heritage — 1983 Chevrolet Blazer, p.20 · 1984 Chevrolet Blazer RV Full Size, p.15 · 1985 Chevrolet Blazer RV Full Size, p.22 · 1986 Chevrolet Blazer, p.9 confirmed

    Internal / Process

    Code Description Years Models/Notes Confidence
    B3W Price information, preliminary 1983, 1984 printed as a no-price line in the option list internal code ⛭ GM Heritage — 1983 Chevrolet Blazer, p.10 · 1984 Chevrolet Blazer RV Full Size, p.6 confirmed
    NA5 Emission system, federal 1983–1986 printed in the power team chart headings and the 1984 order guide internal code ⛭ GM Heritage — 1983 Chevrolet Blazer, p.4 · 1984 Chevrolet Blazer RV Full Size, p.4 · 1985 Chevrolet Blazer RV Full Size, p.6 · 1986 Chevrolet Blazer, p.6 confirmed
    NA6 Emission system, high altitude 1983–1986 printed in the power team chart headings and the 1984 order guide internal code ⛭ GM Heritage — 1983 Chevrolet Blazer, p.4 · 1984 Chevrolet Blazer RV Full Size, p.4 · 1985 Chevrolet Blazer RV Full Size, p.6 · 1986 Chevrolet Blazer, p.6 confirmed
    YF5 Emission system, California 1983–1986 internal code ⛭ GM Heritage — 1983 Chevrolet Blazer, p.7 · 1984 Chevrolet Blazer RV Full Size, p.16 · 1985 Chevrolet Blazer RV Full Size, p.6 · 1986 Chevrolet Blazer, p.10 confirmed

    Sources

    Factory documents (T1)

    • [HK] chevrolet/1983-Chevrolet-Blazer.txt — 1983 K Blazer/Jimmy book (model selector, power teams, option price pages, feature pages, color pages)
    • [HK] chevrolet/1984-Chevrolet-Blazer_RV_Full-Size.txt — 1984 K Blazer/Jimmy dealer order guide and book (order guide pages 4–6, body code page 10–11, power teams, option price pages 15–20)
    • [HK] chevrolet/1985-Chevrolet-Blazer_RV_Full-Size.txt — 1985 K Blazer/Jimmy book (body code, power teams, option pages 9–13, paint page 22)
    • [HK] chevrolet/1986-Chevrolet-Blazer.txt — 1986 K Blazer/Jimmy book (body code, power teams, option pages 9–14)
    • [HK] chevrolet/1990-Chevrolet-Blazer.txt — 1990 V Blazer/Jimmy book (models, powertrains, cooling, options pages 15–16)
    • [HK] chevrolet/1991-Chevrolet-Blazer.txt — 1991 V Blazer book (models, powertrains, cooling, options pages 15–16, color pages 17–18)
    • [HK] chevrolet-trucks/1988-Chevrolet-Truck.txt — 1988 engine data pages 41 (L05) and 49 (LH6) only
    • NICB VIN manuals: docs/reference/nicb/nicb1987-gm.txt p.92–93; docs/reference/nicb/nicb1990-gm.txt p.82

    Other sources