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

    Buick · 1983-1987

    Regal — G-body (1983–1987)

    regal · turbo regal · grand national · regal limited · regal t-type · regal sport

    103 option rows 103 RPO codes 5 model years
    38% Factory-verified
    • ✓ Factory-verified · 39
    • ● Confirmed · 63
    • ◑ Single-source · 1
    • ⚠ Disputed · 0

    Applicable options

    Documented RPO codes

    Have a VIN? Decode it at DecodeThis
    Model year
    Code Option Years Notes & factory source Confidence
    Engines
    LD5 Engine, 3.8L V6, 231 cu in, 2 barrel 1983–1987
    the base engine; not with WE2 (1987); every year from gnttype.org's VIN engine tables, 1987 also from its option sheet; shared G-body powertrain code, cited from the Monte Carlo kit (1983–1984)
    GM Heritage factory kit — 1983 Chevrolet Monte Carlo, p.30.
    GM Heritage factory kit — 1984 Chevrolet Monte Carlo, p.36.
    		Factory-verified
    LC4 Engine, 4.1L V6, 252 cu in, 4 barrel 1983–1984
    gnttype.org's 1983 and 1984 VIN engine tables; Wikipedia gives the 4.1L to the Regal through 1984
    		 Confirmed
    LT6 Engine, diesel, 4.3L V6 1983–1984
    gnttype.org's 1983 and 1984 VIN engine tables; Wikipedia gives the 4.3L diesel V6 to the Regal through 1984; shared G-body powertrain code, cited from the Monte Carlo kit (1983)
    GM Heritage factory kit — 1983 Chevrolet Monte Carlo, p.30.
    		Factory-verified
    LF9 Engine, diesel, 5.7L V8 1983–1985
    Wikipedia gives the 5.7L diesel V8 to the Regal through 1985, and buickturboregal.com lists LF9 among the Regal's codes; gnttype.org's VIN tables do not list it under the Regal; shared G-body powertrain code, cited from the Monte Carlo kit (1983–1984)
    GM Heritage factory kit — 1983 Chevrolet Monte Carlo, p.30.
    GM Heritage factory kit — 1984 Chevrolet Monte Carlo, p.36.
    		Factory-verified
    LM9 Engine, 3.8L V6, turbocharged, sequential fuel injection 1984–1985
    T-Type and Grand National; gnttype.org's 1984 and 1985 VIN tables (engine VIN code 9); its 1983 table also prints LM9, as a carbureted turbo, but its own 1983 example gives the 4-barrel turbo engine as VIN code 3 with no RPO code, so 1983 is not claimed
    		 Confirmed
    LC2 Engine, 3.8L V6, turbocharged, intercooled, sequential fuel injection 1986–1987
    gnttype.org's 1986 and 1987 VIN tables (engine VIN code 7) and its 1987 option sheet: requires Y56 and C60, and included with WE2; Wikipedia dates the intercooler and the LC2 code from 1986
    		 Confirmed
    LV2 Engine, 5.0L V8, 307 cu in, 4 barrel 1986–1987
    gnttype.org's 1986 and 1987 VIN tables and its 1987 option sheet (not with WE2; requires C60 with YF5); Wikipedia gives the Regal the Oldsmobile 307 V8 for 1986–1987; 1985 is left out: gnttype.org's 1985 VIN table lists it under the Regal, but Wikipedia starts it in 1986
    		 Confirmed
    Transmissions
    MX1 Transmission, 3 speed automatic 1987
    standard; not with LC2 or WE2; gnttype.org's 1987 option sheet; shared G-body code, cited from the Monte Carlo kit
    GM Heritage factory kit — 1987 Chevrolet Monte Carlo, p.47.
    		Factory-verified
    MX0 Transmission, 4 speed automatic, overdrive 1987
    not with LD5; included with WE2, whose lists call it the 200-4R; gnttype.org's 1987 option sheet; 1986 is left out because gnttype.org prints it that year only inside the WE2 package; the kit's 1987 price page prints MXO; shared G-body code, cited from the Monte Carlo kit
    GM Heritage factory kit — 1987 Chevrolet Monte Carlo, p.47.
    		Factory-verified
    Axles
    G80 Axle, rear, limited slip differential 1987
    gnttype.org's 1987 option sheet; shared G-body code, cited from the Monte Carlo kit
    GM Heritage factory kit — 1987 Chevrolet Monte Carlo, p.40.
    		Factory-verified
    GM8 Axle, rear, 2.56 ratio 1987
    no-charge option; gnttype.org's 1987 option sheet
    		 Confirmed
    GU4 Axle, rear, 3.08 ratio 1987
    no-charge option; gnttype.org's 1987 option sheet
    		 Confirmed
    GU5 Axle, rear, 3.23 ratio 1987
    no-charge option; gnttype.org's 1987 option sheet
    		 Confirmed
    Packages & Trims
    WE2 Grand National package 1984–1987
    includes LC2, FE2, D55, D35, NP5, C60, QYZ, N83, a 3.42 axle, spoilers and its own interior (1987 option sheet); black paint; 1984–1985 from gnttype.org's production page (GM Canada's Regal import counts by year for option WE2), 1986 from gnttype.org's WE2 package list, 1987 from its option sheet
    		 Confirmed
    WH1 Designer package 1984–1986
    gnttype.org's production page gives WH1 production for 1984, 1985 and 1986; the wording is buickturboregal.com's, which groups WH1 with the T-Type
    		 Confirmed
    WE4 Turbo T package 1987
    gnttype.org's production page and its 1987 dealer-literature note; Wikipedia calls it a lightweight option
    		 Confirmed
    Y56 T package 1987
    includes FE2, gas shocks, aluminum wheels, QYZ and NP5; gnttype.org's 1987 option sheet
    		 Confirmed
    W02 Exterior sport package, blackout moldings 1987
    gnttype.org's 1987 option sheet; Wikipedia prints WO2
    		 Confirmed
    WF6 Exterior molding package, wide rocker panel and belt reveal moldings 1987
    not with W02 or WE2; gnttype.org's 1987 option sheet
    		 Confirmed
    T1Y Value package, discount 1987
    a price discount when D64, UM6 or UX1, U75 or US7 and one of P12, N91, N78 or Y56 are ordered together, with a code the sheet prints as AI3; gnttype.org's 1987 option sheet
    		 Confirmed
    Y44 Decor package 1983
    T-Type; designer's accent paint, blacked-out grille, wiper arms and lamp bezels, wide rocker moldings and a sport steering wheel; only Before Black's 1983 T-Type caption gives it, and that caption says the pictured car (from Motor Trend, August 1982) is likely a pre-production version
    		 Single-source
    Equipment
    A65 Seat, front, notchback bench, cloth 1987
    standard; gnttype.org's 1987 option sheet
    		 Confirmed
    AK1 Seat belts, deluxe, color-coordinated 1987
    standard; gnttype.org's 1987 option sheet
    		 Confirmed
    AM6 Seat, front, 55/45 divided bench, cloth 1987
    gnttype.org's 1987 option sheet; shared G-body code, cited from the Monte Carlo kit
    GM Heritage factory kit — 1987 Chevrolet Monte Carlo, p.88.
    		Factory-verified
    AR9 Seats, front bucket, reclining 1987
    includes the recliners and D55; no charge with WE2; gnttype.org's 1987 option sheet; shared G-body code, cited from the Monte Carlo kit
    GM Heritage factory kit — 1987 Chevrolet Monte Carlo, p.88.
    		Factory-verified
    AT6 Seatback recliner, passenger, manual 1987
    with AM6; no charge with AR9 or WE2; gnttype.org's 1987 option sheet
    		 Confirmed
    AU3 Locks, power door 1987
    gnttype.org's 1987 option sheet; shared G-body code, cited from the Monte Carlo kit
    GM Heritage factory kit — 1987 Chevrolet Monte Carlo, p.40.
    		Factory-verified
    A01 Glass, tinted 1987
    gnttype.org's 1987 option sheet
    		 Confirmed
    A31 Windows, power 1987
    gnttype.org's 1987 option sheet; shared G-body code, cited from the Monte Carlo kit
    GM Heritage factory kit — 1987 Chevrolet Monte Carlo, p.40.
    		Factory-verified
    A90 Trunk lid release, power 1987
    gnttype.org's 1987 option sheet; shared G-body code, cited from the Monte Carlo kit
    GM Heritage factory kit — 1987 Chevrolet Monte Carlo, p.88.
    		Factory-verified
    B32 Floor mats, front, carpet savers 1987
    gnttype.org's 1987 option sheet
    		 Confirmed
    B33 Floor mats, rear, carpet savers 1987
    gnttype.org's 1987 option sheet
    		 Confirmed
    B34 Floor mats, front, carpet savers with inserts 1987
    gnttype.org's 1987 option sheet; shared G-body code, cited from the Monte Carlo kit
    GM Heritage factory kit — 1987 Chevrolet Monte Carlo, p.88.
    		Factory-verified
    B35 Floor mats, rear, carpet savers with inserts 1987
    gnttype.org's 1987 option sheet; shared G-body code, cited from the Monte Carlo kit
    GM Heritage factory kit — 1987 Chevrolet Monte Carlo, p.40.
    		Factory-verified
    B48 Trunk trim covering 1987
    gnttype.org's 1987 option sheet
    		 Confirmed
    B83 Molding, rocker panel 1987
    standard; gnttype.org's 1987 option sheet
    		 Confirmed
    B88 Moldings, body side, wide protective 1987
    only with W02 or WE2; gnttype.org's 1987 option sheet
    		 Confirmed
    B91 Door edge guards, black 1987
    only with W02 or WE2; gnttype.org's 1987 option sheet
    		 Confirmed
    B93 Door edge guards, chrome 1987
    not with W02 or WE2; gnttype.org's 1987 option sheet; the kit's weight page prints it as BPO B93; shared G-body code, cited from the Monte Carlo kit
    GM Heritage factory kit — 1987 Chevrolet Monte Carlo, p.88.
    		Factory-verified
    B96 Molding, wheel opening 1987
    standard, with roof drip moldings; gnttype.org's 1987 option sheet
    		 Confirmed
    C04 Roof cover, landau, heavily padded vinyl 1987
    not with W02 or WE2; gnttype.org's 1987 option sheet; the kit page prints CO4; shared G-body code, cited from the Monte Carlo kit
    GM Heritage factory kit — 1987 Chevrolet Monte Carlo, p.88.
    		Factory-verified
    CB4 Roof cover, landau, vinyl 1987
    not with W02 or WE2; gnttype.org's 1987 option sheet
    		 Confirmed
    CC1 Roof, hatch 1987
    not with C95; gnttype.org's 1987 option sheet; shared G-body code, cited from the Monte Carlo kit
    GM Heritage factory kit — 1987 Chevrolet Monte Carlo, p.40.
    		Factory-verified
    CD4 Windshield wipers, 2 speed, low speed delay 1987
    requires N33 when ordered with D55; gnttype.org's 1987 option sheet; shared G-body code, cited from the Monte Carlo kit
    GM Heritage factory kit — 1987 Chevrolet Monte Carlo, p.40.
    		Factory-verified
    CF5 Astroroof, power, electric sliding 1987
    gnttype.org's 1987 option sheet
    		 Confirmed
    C49 Defogger, rear window, electric 1987
    required in New York State; gnttype.org's 1987 option sheet; shared G-body code, cited from the Monte Carlo kit
    GM Heritage factory kit — 1987 Chevrolet Monte Carlo, p.88.
    		Factory-verified
    C60 Air conditioning, manual 1987
    no charge with WE2; gnttype.org's 1987 option sheet; shared G-body code, cited from the Monte Carlo kit
    GM Heritage factory kit — 1987 Chevrolet Monte Carlo, p.88.
    		Factory-verified
    C95 Lamps, reading, front seat 1987
    not with CC1; gnttype.org's 1987 option sheet
    		 Confirmed
    D34 Mirror, visor vanity, passenger 1987
    gnttype.org's 1987 option sheet; shared G-body code, cited from the Monte Carlo kit
    GM Heritage factory kit — 1987 Chevrolet Monte Carlo, p.89.
    		Factory-verified
    D35 Mirrors, outside, left-hand remote, right-hand manual 1987
    no charge with WE2; gnttype.org's 1987 option sheet; shared G-body code, cited from the Monte Carlo kit
    GM Heritage factory kit — 1987 Chevrolet Monte Carlo, p.89.
    		Factory-verified
    D55 Console, full length 1987
    no charge, and only with AR9; gnttype.org's 1987 option sheet; shared G-body code, cited from the Monte Carlo kit
    GM Heritage factory kit — 1987 Chevrolet Monte Carlo, p.89.
    		Factory-verified
    D64 Mirror, visor vanity, passenger, illuminated 1987
    gnttype.org's 1987 option sheet
    		 Confirmed
    D68 Mirrors, sport, dual remote control 1987
    priced lower with WE2; gnttype.org's 1987 option sheet; shared G-body code, cited from the Monte Carlo kit
    GM Heritage factory kit — 1987 Chevrolet Monte Carlo, p.89.
    		Factory-verified
    D83 Paint, special solid color 1987
    not with WE2; gnttype.org's 1987 option sheet
    		 Confirmed
    D84 Paint, designer's accent 1987
    not with body side stripes, W02 or WE2; gnttype.org's 1987 option sheet
    		 Confirmed
    F40 Suspension, firm ride and handling 1987
    not with F41, Y56 or WE2; gnttype.org's 1987 option sheet
    		 Confirmed
    F41 Suspension, Gran Touring 1987
    not with F40, Y56 or WE2; gnttype.org's 1987 option sheet; the Monte Carlo kit calls it the sport suspension; shared G-body code, cited from the Monte Carlo kit
    GM Heritage factory kit — 1987 Chevrolet Monte Carlo, p.40.
    		Factory-verified
    FE2 Suspension, special Gran Touring 1987
    only with Y56 or WE2; gnttype.org's 1987 option sheet
    		 Confirmed
    J50 Brakes, power, front disc 1987
    standard; gnttype.org's 1987 option sheet
    		 Confirmed
    K05 Heater, engine block 1987
    not with LV2; gnttype.org's 1987 option sheet; the kit's weight page prints PPO KO5; shared G-body code, cited from the Monte Carlo kit
    GM Heritage factory kit — 1987 Chevrolet Monte Carlo, p.89.
    		Factory-verified
    K22 Generator, Delcotron, 94 amp 1987
    not with LC2; priced by air conditioning and engine; gnttype.org's 1987 option sheet
    		 Confirmed
    K34 Cruise control, electronic 1987
    gnttype.org's 1987 option sheet; shared G-body code, cited from the Monte Carlo kit
    GM Heritage factory kit — 1987 Chevrolet Monte Carlo, p.40.
    		Factory-verified
    K99 Generator, Delcotron, 85 amp 1987
    requires air conditioning with LD5; gnttype.org's 1987 option sheet
    		 Confirmed
    N33 Steering wheel, tilt 1987
    gnttype.org's 1987 option sheet; shared G-body code, cited from the Monte Carlo kit
    GM Heritage factory kit — 1987 Chevrolet Monte Carlo, p.40.
    		Factory-verified
    N34 Steering wheel, sport 1987
    not with WE2 or Y56; gnttype.org's 1987 option sheet
    		 Confirmed
    N41 Steering, power 1987
    standard; gnttype.org's 1987 option sheet
    		 Confirmed
    N78 Wheels, aluminum, sport, high tech 1987
    not with Y56 or WE2; gnttype.org's 1987 option sheet
    		 Confirmed
    N83 Wheels, 15 in, chrome plated 1987
    only with WE2; gnttype.org's 1987 option sheet
    		 Confirmed
    N91 Wheel covers, wire, custom, locking 1987
    not with Y56 or WE2; gnttype.org's 1987 option sheet
    		 Confirmed
    NP5 Steering wheel, sport, leather-wrapped 1987
    only with WE2 or Y56; gnttype.org's 1987 option sheet
    		 Confirmed
    P01 Wheel covers, deluxe 1987
    standard; gnttype.org's 1987 option sheet
    		 Confirmed
    P12 Wheels, chrome plated 1987
    not with Y56 or WE2; gnttype.org's 1987 option sheet
    		 Confirmed
    QHY Tires, P205/70R14, steel belted radial, whitewall 1987
    requires F41; not with Y56 or WE2; gnttype.org's 1987 option sheet; shared G-body code, cited from the Monte Carlo kit
    GM Heritage factory kit — 1987 Chevrolet Monte Carlo, p.40.
    		Factory-verified
    QMX Tires, P195/75R14, steel belted radial, whitewall 1987
    standard; not with F41, Y56 or WE2; gnttype.org's 1987 option sheet; shared G-body code, cited from the Monte Carlo kit
    GM Heritage factory kit — 1987 Chevrolet Monte Carlo, p.40.
    		Factory-verified
    QYH Tires, P215/65R15, steel belted radial, white letter 1987
    requires Y56 or WE2; gnttype.org's 1987 option sheet
    		 Confirmed
    QYZ Tires, P215/65R15, steel belted radial, blackwall 1987
    only with WE2; gnttype.org's 1987 option sheet
    		 Confirmed
    TR9 Lamp group 1987
    standard; trunk, engine, glove box, ashtray and courtesy lamps; gnttype.org's 1987 option sheet; shared G-body code, cited from the Monte Carlo kit
    GM Heritage factory kit — 1987 Chevrolet Monte Carlo, p.40.
    		Factory-verified
    TT5 Headlamps, tungsten halogen, high beam 1987
    gnttype.org's 1987 option sheet
    		 Confirmed
    T63 Headlamps-on indicator 1987
    gnttype.org's 1987 option sheet
    		 Confirmed
    T82 Headlamp control, Twilight Sentinel 1987
    gnttype.org's 1987 option sheet
    		 Confirmed
    T87 Lamps, cornering 1987
    not with W02 or WE2; requires N33 and CD4 with AR9; gnttype.org's 1987 option sheet
    		 Confirmed
    UA1 Battery, heavy duty 1987
    gnttype.org's 1987 option sheet; shared G-body code, cited from the Monte Carlo kit
    GM Heritage factory kit — 1987 Chevrolet Monte Carlo, p.46.
    		Factory-verified
    UA6 Theft deterrent system, starter interrupt 1987
    requires AU3; gnttype.org's 1987 option sheet
    		 Confirmed
    UK4 Radio, AM/FM stereo, electronically tuned, seek and scan 1987
    gnttype.org's 1987 option sheet; shared G-body code, cited from the Monte Carlo kit
    GM Heritage factory kit — 1987 Chevrolet Monte Carlo, p.40.
    		Factory-verified
    UL5 Radio delete 1987
    a credit option; gnttype.org's 1987 option sheet; shared G-body code, cited from the Monte Carlo kit
    GM Heritage factory kit — 1987 Chevrolet Monte Carlo, p.40.
    		Factory-verified
    UM6 Radio, AM/FM stereo, electronically tuned, seek and scan, cassette tape, auto reverse, clock 1987
    includes U66; gnttype.org's 1987 option sheet; shared G-body code, cited from the Monte Carlo kit
    GM Heritage factory kit — 1987 Chevrolet Monte Carlo, p.40.
    		Factory-verified
    UM7 Radio, AM/FM stereo, electronically tuned, seek and scan, clock 1987
    includes U66; gnttype.org's 1987 option sheet; shared G-body code, cited from the Monte Carlo kit
    GM Heritage factory kit — 1987 Chevrolet Monte Carlo, p.40.
    		Factory-verified
    UW4 Speaker system, Concert Sound 1987
    requires UM6, UM7 or UX1; gnttype.org's 1987 option sheet
    		 Confirmed
    UX1 Radio, AM/FM stereo, electronically tuned, seek and scan, cassette tape, graphic equalizer, clock 1987
    includes U66; gnttype.org's 1987 option sheet; shared G-body code, cited from the Monte Carlo kit
    GM Heritage factory kit — 1987 Chevrolet Monte Carlo, p.40.
    		Factory-verified
    U05 Horns, dual 1987
    standard; gnttype.org's 1987 option sheet
    		 Confirmed
    U23 Odometer, trip 1987
    no charge with LC2, U52 or WE2; gnttype.org's 1987 option sheet
    		 Confirmed
    U52 Instrumentation, electronic 1987
    priced lower with WE2; gnttype.org's 1987 option sheet
    		 Confirmed
    U63 Radio, AM 1987
    standard; gnttype.org's 1987 option sheet; shared G-body code, cited from the Monte Carlo kit
    GM Heritage factory kit — 1987 Chevrolet Monte Carlo, p.87.
    		Factory-verified
    U66 Speakers, extended range, dual rear 1987
    not with U63; included with UM6, UM7 and UX1; gnttype.org's 1987 option sheet; shared G-body code, cited from the Monte Carlo kit
    GM Heritage factory kit — 1987 Chevrolet Monte Carlo, p.40.
    		Factory-verified
    U73 Antenna, fixed mast 1987
    standard; gnttype.org's 1987 option sheet
    		 Confirmed
    U75 Antenna, power, automatic 1987
    not with W02 or WE2; gnttype.org's 1987 option sheet; buickturboregal.com calls it the bright-mount antenna; shared G-body code, cited from the Monte Carlo kit
    GM Heritage factory kit — 1987 Chevrolet Monte Carlo, p.40.
    		Factory-verified
    US7 Antenna, power, automatic 1987
    only with W02 or WE2; gnttype.org's 1987 option sheet; buickturboregal.com calls it the black-mount antenna
    		 Confirmed
    V08 Cooling, heavy duty, engine and transmission 1987
    not with LC2 or WE2; gnttype.org's 1987 option sheet
    		 Confirmed
    VE5 Bumper rub strips, front and rear 1987
    standard; gnttype.org's 1987 option sheet
    		 Confirmed
    VK3 License plate bracket, front 1987
    where a state requires it; gnttype.org's 1987 option sheet
    		 Confirmed
    V30 Bumper guards, front and rear 1987
    standard; gnttype.org's 1987 option sheet
    		 Confirmed
    WG1 Seat, power, 6 way, driver 1987
    not with A65; gnttype.org's 1987 option sheet
    		 Confirmed
    Internal / Process
    YF5 internal Emission system, California 1987
    gnttype.org's 1987 option sheet
    		 Confirmed

    Source document: buick/regal-g-body.md. Rows marked — record an option the factory offered whose RPO code is not documented in the consulted sources.