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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/gmc/jimmy-fullsize-squarebody.md

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

    GMC Jimmy (full-size, K/V) — Square body (1983–1991)

    No GMC order guide or data book for this truck is in the archive, so every code below comes from the Chevrolet Blazer Heritage kit books, read as the platform twin. The 1983, 1985 and 1986 books, and the 1984 book from page 7 on, are joint Chevrolet and GMC books (headed K Blazer/Jimmy, with the GMC trim names Custom Deluxe/Sierra and Silverado/Sierra Classic, paint pages marked "GMC model shown (Chevrolet model available)", and a 1984 price page that lists the utility as CK/TK10516); pages 1–6 of the 1984 book are a Chevrolet-only K/Blazer dealer order guide (model CK10516, YE9 called only Silverado), so a 1984 year that rests only on them makes the row single-source; the 1990 book is the joint V Blazer/Jimmy book (Scottsdale/SLX and Silverado/SLE trims, with notes on the GMC grille and the radio standard on GMC models); and the 1988 truck engine data pages, which name the V10/1500 Blazer/Jimmy, are joint pages. The 1991 book is a Chevrolet Motor Division V Blazer book (model CV10516) with no GMC page: a year that rests only on it makes the row single-source, and its YE9 line, which names only the Silverado trim, is not used. The books show one four-wheel-drive utility with a removable top (K10516 to 1986, with white or black top body codes Z58 and Z59 in 1983–1984 and ZW9 from 1985; V10516/ZW9 in 1990), the 4 barrel 5.0L V8 (LE9) and California-only 5.7L V8 (LS9) to 1986, the fuel-injected 5.7L V8 (L05) in 1988 and 1990–1991 and the 6.2L diesel (LH6, with B3J diesel equipment), with the MM4 4 speed manual or the MX0 4 speed overdrive automatic; there is no full-size Blazer/Jimmy book for 1987 or 1989, so no code is claimed for those years. Against the merged Chevrolet K5 Blazer doc, which reads the same books, this doc applies the strict group-contents ruling: years the K5 doc takes only from package contents, With/Without price lines, exclusion remarks or requirement remarks are left out (A31 1986, KC4 1984, 1990 and 1991, N67 and PA6 1983 and 1986, U37 1983, UM6 1986, UY7 1986 and 1991, V10 and V31 1985, VR4 1984 and 1991, Z75 1983 and 1985, ZQ2 1983, 1985 and 1986, Z82 1984 and 1991; of these, KC4 1990 and Z82 1984 are named otherwise only in requirement footnotes and N67 and PA6 1983 and 1986 only in either/or tire remarks), YE9 1991 is not claimed, and B3W adds 1985–1986 from option lines the K5 doc did not cite. NICB's 1987 and 1990 VIN manuals count GMC Jimmys with the C/K, then R/V, conventional cab lines (the 1987 manual gives the Blazer and Jimmy utility its own body type) and print no Jimmy trim badges; no source here gives GMC-only codes (the GMC name plate, GMC paint colors), and tire, seat trim and paint color codes are not listed.

    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 powertrain page also prints LO5; shared square-body platform code; cited from the Chevrolet Blazer kit and the Chevrolet truck kit; 1991 rests on the Chevrolet-only 1991 Blazer book, so the row is single-source ⛭ GM Heritage — 1988 Chevrolet Truck, p.41 · 1990 Chevrolet Blazer, p.15 · 1991 Chevrolet Blazer, p.5 single-source
    LE9 Engine, 5.0L V8, 4 barrel 1983–1986 standard gasoline engine (305 cu in); the 1984 price page prints LES; shared square-body platform code; cited from the Chevrolet Blazer kit ⛭ GM Heritage — 1983 Chevrolet Blazer, p.8 · 1984 Chevrolet Blazer RV Full Size, p.12 · 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; shared square-body platform code; cited from the Chevrolet Blazer kit and the Chevrolet truck kit; 1991 rests on the Chevrolet-only 1991 Blazer book, so the row is single-source ⛭ 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 single-source
    LS9 Engine, 5.7L V8, 4 barrel 1983–1986 only with YF5 California emissions; shared square-body platform code; cited from the Chevrolet Blazer kit ⛭ GM Heritage — 1983 Chevrolet Blazer, p.8 · 1984 Chevrolet Blazer RV Full Size, p.12 · 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; 1983–1985 from the power team charts, whose 4 speed column the code heads; the 1990–1991 powertrain pages head the SM465 gearbox with MM4, and the 1990–1991 option pages print MM42 with a footnote mark; shared square-body platform code; cited from the Chevrolet Blazer kit; 1991 rests on the Chevrolet-only 1991 Blazer book, so the row is single-source ⛭ GM Heritage — 1983 Chevrolet Blazer, p.4 · 1984 Chevrolet Blazer RV Full Size, p.12 · 1985 Chevrolet Blazer RV Full Size, p.6 · 1986 Chevrolet Blazer, p.10 · 1990 Chevrolet Blazer, p.6 · 1991 Chevrolet Blazer, p.6 single-source
    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); shared square-body platform code; cited from the Chevrolet Blazer kit; 1991 rests on the Chevrolet-only 1991 Blazer book, so the row is single-source ⛭ 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 single-source

    Axles

    Code Description Years Models/Notes Confidence
    G80 Axle, rear, locking differential 1983–1986, 1990 the kits print it as the locking differential; the GMC GMT400 Yukon doc reads it from GM's lists as Positraction; the 1983–1986 price pages print G8O; the 1991 option page prints GaO, so 1991 is left out; shared square-body platform code; cited from the Chevrolet Blazer kit ⛭ 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 · 1990 Chevrolet Blazer, p.15 confirmed
    GQ1 Axle, rear, standard ratio 1983–1986 the power team charts print it in every team; 73-87.com reads it as the standard (non-Positraction) rear axle; shared square-body platform code; cited from the Chevrolet Blazer kit ⛭ GM Heritage — 1983 Chevrolet Blazer, p.4 · 1984 Chevrolet Blazer RV Full Size, p.12 · 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; shared square-body platform code; cited from the Chevrolet Blazer kit ⛭ GM Heritage — 1983 Chevrolet Blazer, p.4 · 1984 Chevrolet Blazer RV Full Size, p.12 · 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; shared square-body platform code; cited from the Chevrolet Blazer kit ⛭ GM Heritage — 1983 Chevrolet Blazer, p.4 · 1984 Chevrolet Blazer RV Full Size, p.12 · 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; shared square-body platform code; cited from the Chevrolet Blazer kit ⛭ GM Heritage — 1983 Chevrolet Blazer, p.4 · 1984 Chevrolet Blazer RV Full Size, p.12 · 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 GMC GMT400 Yukon doc reads it from GM's lists as a chrome radiator grille; shared square-body platform code; cited from the Chevrolet Blazer kit ⛭ 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 confirmed
    YE9 Decor package, Sierra Classic 1983–1986, 1990 the joint books name it the Silverado/Sierra Classic model option (1983–1986) and the Silverado/SLE trim (1990); Sierra Classic and SLE are the GMC names, and the Chevrolet K5 Blazer doc reads it as the Silverado decor package; 1991 is left out because the Chevrolet-only 1991 book names YE9 only as the Silverado trim; the 1984 price page prints YEO; shared square-body platform code; cited from the Chevrolet Blazer kit ⛭ GM Heritage — 1983 Chevrolet Blazer, p.7 · 1984 Chevrolet Blazer RV Full Size, p.24 · 1985 Chevrolet Blazer RV Full Size, p.9 · 1986 Chevrolet Blazer, p.9 · 1990 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; shared square-body platform code; cited from the Chevrolet Blazer kit ⛭ 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; shared square-body platform code; cited from the Chevrolet Blazer kit ⛭ 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 1984 includes AU3 power door locks and A31 power windows; 1984 rests on the Chevrolet-only 1984 order guide pages (the joint price page prints the code as 202 and names ZQ2 otherwise only in content remarks), so the row is single-source; the 1983, 1985 and 1986 option lines print the code as z02 or Z02 and those pages name ZQ2 otherwise only as the package that includes AU3 or A31, so those years are left out (the Chevrolet K5 Blazer doc claims them from those package remarks); shared square-body platform code; cited from the Chevrolet Blazer kit ⛭ GM Heritage — 1984 Chevrolet Blazer RV Full Size, p.6 single-source

    Equipment

    Code Description Years Models/Notes Confidence
    A31 Window, power 1983–1985 side doors; included with ZQ2; the 1986 page names A31 only in the ZQ2 contents (its power window line has no legible code), so 1986 is left out; 1984 rests on the Chevrolet-only 1984 order guide pages (the joint price page names A31 only in the ZQ2 contents and its power window line prints no code), so the row is single-source; shared square-body platform code; cited from the Chevrolet Blazer kit ⛭ GM Heritage — 1983 Chevrolet Blazer, p.11 · 1984 Chevrolet Blazer RV Full Size, p.6 · 1985 Chevrolet Blazer RV Full Size, p.13 single-source
    A33 Window, power, tailgate 1983–1985 electric tailgate window; 1984 from the joint standard equipment page, whose tailgate entry names the optional electric tailgate window as RPO A33 (the joint price page's tailgate window line prints no code); shared square-body platform code; cited from the Chevrolet Blazer kit ⛭ GM Heritage — 1983 Chevrolet Blazer, p.11 · 1984 Chevrolet Blazer RV Full Size, p.22 · 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 and 1985 OCR text prints the code with Cyrillic letters, so those years are left out; 1984 rests on the Chevrolet-only 1984 order guide pages (the joint price page also prints the code with Cyrillic letters), so the row is single-source; shared square-body platform code; cited from the Chevrolet Blazer kit ⛭ GM Heritage — 1984 Chevrolet Blazer RV Full Size, p.5 · 1986 Chevrolet Blazer, p.12 single-source
    AD5 Window, sliding side quarter 1983–1986, 1990 the 1991 page prints ADS, so 1991 is left out; shared square-body platform code; cited from the Chevrolet Blazer kit ⛭ GM Heritage — 1983 Chevrolet Blazer, p.9 · 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 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; 1984 rests on the Chevrolet-only 1984 order guide pages, which print the code without legible wording (the joint price page prints AN1 and names AJ1 otherwise only in the AA3 entry), and 1991 rests on the Chevrolet-only 1991 Blazer book, so the row is single-source; shared square-body platform code; cited from the Chevrolet Blazer kit ⛭ 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 single-source
    AK9 Belts, shoulder, rear seat 1990 requires AM7; the 1991 OCR text prints the code with a Cyrillic A, so 1991 is left out; shared square-body platform code; cited from the Chevrolet Blazer kit ⛭ 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; shared square-body platform code; cited from the Chevrolet Blazer kit; 1991 rests on the Chevrolet-only 1991 Blazer book, so the row is single-source ⛭ 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.13 · 1990 Chevrolet Blazer, p.16 · 1991 Chevrolet Blazer, p.16 single-source
    AU3 Locks, power door 1983–1986 included with ZQ2; shared square-body platform code; cited from the Chevrolet Blazer kit ⛭ 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; shared square-body platform code; cited from the Chevrolet Blazer kit ⛭ 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
    B33 Floor mat, rear, color-keyed, one piece 1986 shared square-body platform code; cited from the Chevrolet Blazer kit ⛭ GM Heritage — 1986 Chevrolet Blazer, p.11 confirmed
    B3J Equipment, diesel 1983–1986, 1990, 1991 required with the LH6 diesel; the 1984–1986 books print it with the body code of the diesel model (Z58/B3J, Z59/B3J, ZW9/B3J), and the 1990–1991 specification pages head the diesel model column with it; shared square-body platform code; cited from the Chevrolet Blazer kit; 1991 rests on the Chevrolet-only 1991 Blazer book, so the row is single-source ⛭ 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 single-source
    B84 Moldings, body side, black 1983–1986 bright with black insert; included with YG1, ZY3 and ZY5; shared square-body platform code; cited from the Chevrolet Blazer kit ⛭ 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
    B85 Moldings, body side, bright 1983–1986 included with YG3 and YE9; 1984 rests on the Chevrolet-only 1984 order guide pages, which print the code in the moldings list without its wording (the joint price page prints 885), so the row is single-source; shared square-body platform code; cited from the Chevrolet Blazer kit ⛭ 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 single-source
    B93 Guards, door edge 1984–1986, 1991 the 1983 page prints 893, so 1983 is left out; shared square-body platform code; cited from the Chevrolet Blazer kit; 1991 rests on the Chevrolet-only 1991 Blazer book, so the row is single-source ⛭ GM Heritage — 1984 Chevrolet Blazer RV Full Size, p.19 · 1985 Chevrolet Blazer RV Full Size, p.12 · 1986 Chevrolet Blazer, p.13 · 1991 Chevrolet Blazer, p.15 single-source
    BB5 Headliner, interior 1983–1986 included with YE9; shared square-body platform code; cited from the Chevrolet Blazer kit ⛭ GM Heritage — 1983 Chevrolet Blazer, p.10 · 1984 Chevrolet Blazer RV Full Size, p.18 · 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; shared square-body platform code; cited from the Chevrolet Blazer kit ⛭ GM Heritage — 1984 Chevrolet Blazer RV Full Size, p.18 · 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 heads the optional air conditioning cooling system with the code (the 1990 option line has no legible code); the GMC GMT400 Yukon doc reads it from GM's lists as front air conditioning; shared square-body platform code; cited from the Chevrolet Blazer kit; 1991 rests on the Chevrolet-only 1991 Blazer book, so the row is single-source ⛭ 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.13 · 1991 Chevrolet Blazer, p.15 single-source
    CD4 Wipers, windshield, intermittent 1983–1986 shared square-body platform code; cited from the Chevrolet Blazer kit ⛭ 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 confirmed
    D44 Mirror, outside, below eye line, painted 1984 9 x 6.5 inch, left-hand and right-hand; 1984 rests on the Chevrolet-only 1984 order guide pages (the joint price page's mirror lines print no code), so the row is single-source; shared square-body platform code; cited from the Chevrolet Blazer kit ⛭ GM Heritage — 1984 Chevrolet Blazer RV Full Size, p.6 single-source
    D45 Mirror, outside, below eye line, stainless steel 1984, 1990 9 x 6.5 inch, left-hand and right-hand; 1984 rests on the Chevrolet-only 1984 order guide pages (the joint price page's mirror lines print no code), so the row is single-source; shared square-body platform code; cited from the Chevrolet Blazer kit ⛭ GM Heritage — 1984 Chevrolet Blazer RV Full Size, p.6 · 1990 Chevrolet Blazer, p.15 single-source
    D48 Mirror, outside, remote control, electric 1990, 1991 6.5 x 9.0 inch; the 1991 page requires ZQ2 (printed ZO2) and YE9; shared square-body platform code; cited from the Chevrolet Blazer kit; 1991 rests on the Chevrolet-only 1991 Blazer book, so the row is single-source ⛭ GM Heritage — 1990 Chevrolet Blazer, p.15 · 1991 Chevrolet Blazer, p.15 single-source
    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); shared square-body platform code; cited from the Chevrolet Blazer kit; 1991 rests on the Chevrolet-only 1991 Blazer book, so the row is single-source ⛭ GM Heritage — 1984 Chevrolet Blazer RV Full Size, p.19 · 1985 Chevrolet Blazer RV Full Size, p.12 · 1986 Chevrolet Blazer, p.13 · 1990 Chevrolet Blazer, p.16 · 1991 Chevrolet Blazer, p.16 single-source
    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; shared square-body platform code; cited from the Chevrolet Blazer kit ⛭ 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
    K34 Speed control, electronic 1983–1986 shared square-body platform code; cited from the Chevrolet Blazer kit ⛭ 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.13 confirmed
    K46 Air cleaner, pre-cleaner 1983–1986 shared square-body platform code; cited from the Chevrolet Blazer kit ⛭ 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 confirmed
    K81 Generator, 66 amp 1983–1986 included with B3J, Z82, V10 and C60; shared square-body platform code; cited from the Chevrolet Blazer kit ⛭ 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, 1985, 1986 the kits print it as the engine oil cooler; not with B3J diesel equipment; included with Z82; 1990 is left out: the powertrain page names KC4 only in a requirement footnote (the 1990 option line prints KC+); the 1984 option lines print KO2 and KCA, and the 1984 and 1991 books otherwise name KC4 only in the Z82 contents or, in 1991, in a requirement footnote with no engine oil cooler option line, so 1984 and 1991 are left out (the Chevrolet K5 Blazer doc claims them from the Z82 contents); shared square-body platform code; cited from the Chevrolet Blazer kit ⛭ GM Heritage — 1983 Chevrolet Blazer, p.9 · 1985 Chevrolet Blazer RV Full Size, p.11 · 1986 Chevrolet Blazer, p.11 confirmed
    N33 Steering wheel, Comfortilt 1983–1986 shared square-body platform code; cited from the Chevrolet Blazer kit ⛭ GM Heritage — 1983 Chevrolet Blazer, p.11 · 1984 Chevrolet Blazer RV Full Size, p.19 · 1985 Chevrolet Blazer RV Full Size, p.12 · 1986 Chevrolet Blazer, p.13 confirmed
    N67 Wheels, rally 1984, 1985, 1990, 1991 15 x 8 steel wheels with trim rings and hub caps; not with P215 tires; 1983 and 1986 are left out: their rally wheel lines print no code and their tire entries name N67 only in an either/or requirement (N67 or PA6 wheels); 1984 rests on the Chevrolet-only 1984 order guide pages (the joint price page's wheel lines print no code) and 1991 on the Chevrolet-only 1991 Blazer book, so the row is single-source; shared square-body platform code; cited from the Chevrolet Blazer kit ⛭ GM Heritage — 1984 Chevrolet Blazer RV Full Size, p.6 · 1985 Chevrolet Blazer RV Full Size, p.13 · 1990 Chevrolet Blazer, p.16 · 1991 Chevrolet Blazer, p.16 single-source
    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; shared square-body platform code; cited from the Chevrolet Blazer kit; 1991 rests on the Chevrolet-only 1991 Blazer book, so the row is single-source ⛭ 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 single-source
    NK7 Fuel tank, approximately 31 gallon 1983–1986 about 31 gallons with gasoline engines and 32 gallons with the diesel; replaces the production tank; shared square-body platform code; cited from the Chevrolet Blazer kit ⛭ GM Heritage — 1983 Chevrolet Blazer, p.11 · 1984 Chevrolet Blazer RV Full Size, p.19 · 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; shared square-body platform code; cited from the Chevrolet Blazer kit; 1991 rests on the Chevrolet-only 1991 Blazer book, so the row is single-source ⛭ 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.13 · 1991 Chevrolet Blazer, p.16 single-source
    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; shared square-body platform code; cited from the Chevrolet Blazer kit; 1991 rests on the Chevrolet-only 1991 Blazer book, so the row is single-source ⛭ 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 single-source
    PA6 Wheels, styled 1984, 1985 four 15 x 8 wheels; not with P215 tires; 1983 and 1986 are left out: their styled wheel lines print no code and their tire entries name PA6 only in an either/or requirement (N67 or PA6 wheels); 1984 rests on the Chevrolet-only 1984 order guide pages (the joint price page's wheel lines print no code), so the row is single-source; shared square-body platform code; cited from the Chevrolet Blazer kit ⛭ GM Heritage — 1984 Chevrolet Blazer RV Full Size, p.6 · 1985 Chevrolet Blazer RV Full Size, p.13 single-source
    T63 Buzzer, headlamp warning 1983–1986 shared square-body platform code; cited from the Chevrolet Blazer kit ⛭ GM Heritage — 1983 Chevrolet Blazer, p.10 · 1984 Chevrolet Blazer RV Full Size, p.18 · 1985 Chevrolet Blazer RV Full Size, p.11 · 1986 Chevrolet Blazer, p.12 confirmed
    TT4 Headlamps, halogen 1983 the option line prints Halogen Hi-Beam; not with V22, TT5 or YE9; shared square-body platform code; cited from the Chevrolet Blazer kit ⛭ GM Heritage — 1983 Chevrolet Blazer, p.9 confirmed
    TT5 Headlamps, halogen high beam 1983–1986 only with V22 or YE9; shared square-body platform code; cited from the Chevrolet Blazer kit ⛭ 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
    U35 Clock, electric, quartz 1983–1986 includes Z53 gages without YE9; the 1986 page rules it out with UM6; shared square-body platform code; cited from the Chevrolet Blazer kit ⛭ 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 confirmed
    U37 Lighter, cigarette 1984–1986 included with YE9; the 1983 book names U37 only in the YE9 contents (its lighter line prints no code), so 1983 is left out; shared square-body platform code; cited from the Chevrolet Blazer kit ⛭ GM Heritage — 1984 Chevrolet Blazer RV Full Size, p.18 · 1985 Chevrolet Blazer RV Full Size, p.12 · 1986 Chevrolet Blazer, p.12 confirmed
    U58 Radio, AM/FM stereo 1983–1986 only with YE9; shared square-body platform code; cited from the Chevrolet Blazer kit ⛭ 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.13 confirmed
    U63 Radio, AM 1983–1986 shared square-body platform code; cited from the Chevrolet Blazer kit ⛭ 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.13 confirmed
    U69 Radio, AM/FM 1983–1986 shared square-body platform code; cited from the Chevrolet Blazer kit ⛭ 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.13 confirmed
    U76 Antenna, windshield 1984, 1985 included with the radios; shared square-body platform code; cited from the Chevrolet Blazer kit ⛭ GM Heritage — 1984 Chevrolet Blazer RV Full Size, p.19 · 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 1984, 1985 and 1986 pages print UAI; shared square-body platform code; cited from the Chevrolet Blazer kit ⛭ 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 confirmed
    UL5 Radio, delete 1991 the 1990 page prints the radio delete line as ULS, so 1990 is left out; shared square-body platform code; cited from the Chevrolet Blazer kit; 1991 rests on the Chevrolet-only 1991 Blazer book, so the row is single-source ⛭ GM Heritage — 1991 Chevrolet Blazer, p.15 single-source
    UM6 Radio, AM/FM stereo, electronically tuned, seek and scan, cassette tape, digital clock 1990 requires YE9; the 1986 book names UM6 only in the clock entry's exclusion remark (its radio line has no legible code), so 1986 is left out (the Chevrolet K5 Blazer doc claims it from that remark); the 1991 page prints this radio without a legible code; shared square-body platform code; cited from the Chevrolet Blazer kit ⛭ GM Heritage — 1990 Chevrolet Blazer, p.15 confirmed
    UM7 Radio, AM/FM stereo, electronically tuned, seek and scan, digital clock 1991 includes a mast antenna; the 1990 page marks this radio standard on GMC models with the SLE trim but prints its code as JMT, so 1990 is left out; shared square-body platform code; cited from the Chevrolet Blazer kit; 1991 rests on the Chevrolet-only 1991 Blazer book, so the row is single-source ⛭ GM Heritage — 1991 Chevrolet Blazer, p.15 single-source
    UN3 Radio, AM/FM stereo, cassette tape 1983–1986 only with YE9; shared square-body platform code; cited from the Chevrolet Blazer kit ⛭ 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.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 1990 page prints UXI; shared square-body platform code; cited from the Chevrolet Blazer kit; 1991 rests on the Chevrolet-only 1991 Blazer book, so the row is single-source ⛭ GM Heritage — 1990 Chevrolet Blazer, p.15 · 1991 Chevrolet Blazer, p.15 single-source
    UY7 Wiring harness, trailer, heavy duty 1984, 1985, 1990 7 lead; included with Z82; the 1983 and 1986 option lines print UYT, and the 1986 and 1991 books otherwise name UY7 only in the Z82 contents, so 1983, 1986 and 1991 are left out (the Chevrolet K5 Blazer doc claims 1986 and 1991 from the Z82 contents); 1984 rests on the Chevrolet-only 1984 order guide pages (the joint price page prints UYT and names UY7 otherwise only in the Z82 contents), so the row is single-source; shared square-body platform code; cited from the Chevrolet Blazer kit ⛭ GM Heritage — 1984 Chevrolet Blazer RV Full Size, p.5 · 1985 Chevrolet Blazer RV Full Size, p.11 · 1990 Chevrolet Blazer, p.15 single-source
    V01 Radiator, heavy duty 1983–1986, 1990, 1991 not with C60 or B3J; 1991 from the cooling page, which heads the optional heavy duty radiator with the code (the 1991 option line has no legible code); the 1990 option line prints VOI and the other kit pages print VO1 or Vo1; shared square-body platform code; cited from the Chevrolet Blazer kit; 1991 rests on the Chevrolet-only 1991 Blazer book, so the row is single-source ⛭ 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.15 · 1991 Chevrolet Blazer, p.13 single-source
    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 1991 option line has no legible code); the kit pages also print VO2; shared square-body platform code; cited from the Chevrolet Blazer kit; 1991 rests on the Chevrolet-only 1991 Blazer book, so the row is single-source ⛭ 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 single-source
    V10 Package, cold climate 1983, 1984, 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 GMC GMT400 Yukon doc reads it from GM's lists as cold climate provisions; the 1985 book names V10 only in other entries' exclusion and content remarks (its cold climate package line has no code), so 1985 is left out (the Chevrolet K5 Blazer doc claims it from the C60 exclusion); the 1990 page prints V1O; 1984 rests on the Chevrolet-only 1984 order guide pages (the joint price page's cold climate package line prints no code and names V10 otherwise only in other entries' remarks) and 1991 on the Chevrolet-only 1991 Blazer book, so the row is single-source; shared square-body platform code; cited from the Chevrolet Blazer kit ⛭ GM Heritage — 1983 Chevrolet Blazer, p.9 · 1984 Chevrolet Blazer RV Full Size, p.5 · 1986 Chevrolet Blazer, p.11 · 1990 Chevrolet Blazer, p.15 · 1991 Chevrolet Blazer, p.15 single-source
    V31 Guards, front bumper, chromed 1983, 1984, 1986 not with VE5; the 1985 book names V31 only in the VE5 exclusion (its bumper guard line has no code), so 1985 is left out (the Chevrolet K5 Blazer doc claims it from that remark); shared square-body platform code; cited from the Chevrolet Blazer kit ⛭ GM Heritage — 1983 Chevrolet Blazer, p.9 · 1984 Chevrolet Blazer RV Full Size, p.17 · 1986 Chevrolet Blazer, p.11 confirmed
    V76 Tow hooks, front 1983–1986 shared square-body platform code; cited from the Chevrolet Blazer kit ⛭ 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
    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; shared square-body platform code; cited from the Chevrolet Blazer kit ⛭ GM Heritage — 1983 Chevrolet Blazer, p.9 · 1984 Chevrolet Blazer RV Full Size, p.17 · 1986 Chevrolet Blazer, p.11 confirmed
    VR2 Trailer hitch, deadweight type 1983–1986 not with Z82; shared square-body platform code; cited from the Chevrolet Blazer kit ⛭ 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, 1985, 1986, 1990 included with Z82; the 1984 hitch line prints VRA, and the 1984 and 1991 books otherwise name VR4 only in the Z82 contents, so 1984 and 1991 are left out (the Chevrolet K5 Blazer doc claims them from the Z82 contents); shared square-body platform code; cited from the Chevrolet Blazer kit ⛭ GM Heritage — 1983 Chevrolet Blazer, p.11 · 1985 Chevrolet Blazer RV Full Size, p.13 · 1986 Chevrolet Blazer, p.13 · 1990 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; shared square-body platform code; cited from the Chevrolet Blazer kit; 1991 rests on the Chevrolet-only 1991 Blazer book, so the row is single-source ⛭ GM Heritage — 1991 Chevrolet Blazer, p.15 single-source
    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 GMC GMT400 Yukon doc reads YG4 with the same wording from GM's lists; shared square-body platform code; cited from the Chevrolet Blazer kit; 1991 rests on the Chevrolet-only 1991 Blazer book, so the row is single-source ⛭ 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.13 · 1990 Chevrolet Blazer, p.16 · 1991 Chevrolet Blazer, p.16 single-source
    Z53 Gages, voltmeter, temperature and oil pressure 1983–1986 included with YE9 and U35; shared square-body platform code; cited from the Chevrolet Blazer kit ⛭ 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
    Z58 Body, removable hardtop, white 1983, 1984 body ordering code of the K10516 utility with a white top; shared square-body platform code; cited from the Chevrolet Blazer kit ⛭ 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; shared square-body platform code; cited from the Chevrolet Blazer kit ⛭ GM Heritage — 1983 Chevrolet Blazer, p.1 · 1984 Chevrolet Blazer RV Full Size, p.10 confirmed
    Z75 Shock absorbers, front, quad 1984, 1986 includes heavy duty rear shocks and a front axle bumper; 1984 rests on the Chevrolet-only 1984 order guide pages (the joint price page prints 275 and names Z75 otherwise only in the F60 spring price lines), so the row is single-source; the 1983 and 1985 option lines print 275 and those pages otherwise name Z75 only in the F60 spring price lines, so 1983 and 1985 are left out (the Chevrolet K5 Blazer doc claims them from those price lines); the 1990 and 1991 pages print 775 and 275, so those years are left out; shared square-body platform code; cited from the Chevrolet Blazer kit ⛭ GM Heritage — 1984 Chevrolet Blazer RV Full Size, p.6 · 1986 Chevrolet Blazer, p.13 single-source
    Z82 Trailer provisions, special equipment, heavy duty 1983, 1985, 1986, 1990 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; 1984 is left out: the joint price page prints 282, and the Chevrolet-only 1984 order guide's power team chart names Z82 only in an either/or requirement footnote; the 1991 trailering line has no code and the 1991 book names Z82 otherwise only in other entries' content remarks, so 1991 is left out; shared square-body platform code; cited from the Chevrolet Blazer kit ⛭ GM Heritage — 1983 Chevrolet Blazer, p.11 · 1985 Chevrolet Blazer RV Full Size, p.13 · 1986 Chevrolet Blazer, p.14 · 1990 Chevrolet Blazer, p.16 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), with B3J for the diesel; the GMC GMT400 Yukon doc reads ZW9 with the same wording from GM's lists; 1991 from the specification page, whose model column is headed CV10516/ZW9; shared square-body platform code; cited from the Chevrolet Blazer kit; 1991 rests on the Chevrolet-only 1991 Blazer book, so the row is single-source ⛭ GM Heritage — 1985 Chevrolet Blazer RV Full Size, p.4 · 1986 Chevrolet Blazer, p.4 · 1990 Chevrolet Blazer, p.2 · 1991 Chevrolet Blazer, p.11 single-source

    Paint

    Code Description Years Models/Notes Confidence
    ZY1 Color combination, solid 1983–1986, 1990 the 1991 page prints 2Y1, so 1991 is left out; shared square-body platform code; cited from the Chevrolet Blazer kit ⛭ 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 confirmed
    ZY2 Color combination, conventional two-tone 1990 includes the YG3 molding package; the 1991 page prints ZYZ, so 1991 is left out; shared square-body platform code; cited from the Chevrolet Blazer kit ⛭ GM Heritage — 1990 Chevrolet Blazer, p.15 confirmed
    ZY3 Color combination, special two-tone 1983–1986, 1990, 1991 includes the YG1 molding package without YE9 (1983–1986); 1985 from the joint paint application page; shared square-body platform code; cited from the Chevrolet Blazer kit; 1991 rests on the Chevrolet-only 1991 Blazer book, so the row is single-source ⛭ 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 single-source
    ZY4 Color combination, deluxe two-tone 1990, 1991 shared square-body platform code; cited from the Chevrolet Blazer kit; 1991 rests on the Chevrolet-only 1991 Blazer book, so the row is single-source ⛭ GM Heritage — 1990 Chevrolet Blazer, p.15 · 1991 Chevrolet Blazer, p.15 single-source
    ZY5 Color combination, exterior decor package, two-tone with striping 1983–1986 dual-tone body side and rear decal striping and a hood ornament; 1983 and 1985 from the joint paint application pages; shared square-body platform code; cited from the Chevrolet Blazer kit ⛭ 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 1983–1986 printed as a no-price line in the option list; the Chevrolet K5 Blazer doc cites only 1983–1984; shared square-body platform code; cited from the Chevrolet Blazer kit internal code ⛭ 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.13 confirmed
    NA5 Emission system, federal 1983–1986 printed in the power team chart headings; shared square-body platform code; cited from the Chevrolet Blazer kit internal code ⛭ GM Heritage — 1983 Chevrolet Blazer, p.4 · 1984 Chevrolet Blazer RV Full Size, p.12 · 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; shared square-body platform code; cited from the Chevrolet Blazer kit internal code ⛭ GM Heritage — 1983 Chevrolet Blazer, p.4 · 1984 Chevrolet Blazer RV Full Size, p.12 · 1985 Chevrolet Blazer RV Full Size, p.6 · 1986 Chevrolet Blazer, p.6 confirmed
    YF5 Emission system, California 1983–1986 1985 from the power team chart heading; shared square-body platform code; cited from the Chevrolet Blazer kit 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, a joint Chevrolet and GMC book (model selector, power teams, option price pages, Silverado/Sierra Classic feature pages, paint pages marked "GMC model shown"); shared platform codes only
    • [HK] chevrolet/1984-Chevrolet-Blazer_RV_Full-Size.txt — 1984 K Blazer/Jimmy book, joint Chevrolet and GMC from page 7 on (body code pages 10–11, power team page 12, option price pages 15–20 with the CK/TK10516 model line, Silverado/Sierra Classic and standard equipment pages 22–24); pages 1–6 are a Chevrolet-only K/Blazer dealer order guide (model CK10516, YE9 called only Silverado), cited only where a 1984 year rests on it, each such row single-source; shared platform codes only
    • [HK] chevrolet/1985-Chevrolet-Blazer_RV_Full-Size.txt — 1985 K Blazer/Jimmy book (published August 1984), joint Chevrolet and GMC (body code, power teams, option pages 9–13, paint application page 22); shared platform codes only
    • [HK] chevrolet/1986-Chevrolet-Blazer.txt — 1986 K Blazer/Jimmy book, joint Chevrolet and GMC (body code, power teams, option pages 9–14); shared platform codes only
    • [HK] chevrolet-trucks/1988-Chevrolet-Truck.txt — 1988 engine data pages 41 (L05) and 49 (LH6) only, which name the V10/1500 Blazer/Jimmy; shared platform codes only
    • [HK] chevrolet/1990-Chevrolet-Blazer.txt — 1990 V Blazer/Jimmy book, joint Chevrolet and GMC (models, powertrains, specification and cooling pages, option pages 15–16); shared platform codes only
    • [HK] chevrolet/1991-Chevrolet-Blazer.txt — 1991 V Blazer book, a Chevrolet Motor Division book (model CV10516) with no GMC page (powertrains, specification and cooling pages, option pages 15–16); shared codes only, each row whose 1991 year rests on it single-source
    • NICB VIN manuals: docs/reference/nicb/nicb1987-gm.txt p.92; docs/reference/nicb/nicb1990-gm.txt p.82

    Other sources

    • http://www.73-87.com/7387info/7387rpo1.htm (2026-11-02; a Chevrolet square-body pickup RPO list with no Blazer or Jimmy mention, not vehicle-specific; corroboration sample of 36 codes, 27 listed with matching meanings, K05 and L05 printed KO5 and LO5; meaning of GQ1)