GM RPO Code Database

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Search the code list

24,366
codes on file
51,776
documented meanings
1973–2026
model years

Type a code, or describe the option in words. Every entry says where the meaning came from and which years we hold it for, because an RPO code can mean different things in different eras and a list that hides that is worse than no list.

CodeMeaningYearsSourcing
001 P RAT, M RATIO, 3.70 1991 GM sourced
001 Rat, M Ratio, 3.70 1991 GM dated
002 P RAT, M RATIO, 4.11 (4 1/9) 1991 GM sourced
002 Rat, M Ratio, 4.11 (4 1/9) 1991 GM dated
003 Rat, M Ratio, 4.33 1991 GM dated
003 P RAT, M RATIO, 4.33 1991 GM sourced
004 Rat, M Ratio, 4.78 1994 GM dated
004 P RAT, M RATIO, 4.78 1994 GM sourced
005 Rat, M Ratio, 4.56 (4 5/9) 1991 GM dated
005 P RAT, M RATIO, 4.56 (4 5/9) 1991 GM sourced
006 Rat, M Ratio, 4.63 (4 5/8) 1996 GM dated
006 P RAT, M RATIO, 4.63 (4 5/8) 1996 GM sourced
007 Rat, M Ratio, 3.07 1997 GM dated
007 P RAT, M RATIO, 3.07 1997 GM sourced
008 Rat, M Ratio, 4.88 1996 GM dated
008 P RAT, M RATIO, 4.88 1996 GM sourced
009 Rat, M Ratio, 5.29 1991 GM dated
009 P RAT, M RATIO, 5.29 1991 GM sourced
00A Spare wheel upgrade Chevrolet Silverado 1500 2022–2023 GM sourced
00A Wheel Spare 17 X 8.0, J, Steel, Design 2 — Reference
00D Not Equipped with Climate Control Knob Digital Temperature Display Chevrolet Silverado 1500 2022 Provisional
00G Not Equipped with Heated Steering Wheel, see dealer for details Chevrolet Silverado 1500 2022–2023 Provisional
00L Ccl, R Secondary Color, Exterior, Prime 1989 GM dated
00L P CCL, R SECONDARY COLOR, EXTERIOR, PRIME 1989 GM sourced
00L Exterior Color,secondary,prime,union City Body — GM dated
00R Not Equipped with Heated Rear Outboard Seats, see dealer for details Chevrolet Silverado 1500 2022–2023 Provisional
00U Ccu, M Primary Color, Exterior, Prime 1989 GM dated
00U P CCU, M PRIMARY COLOR, EXTERIOR, PRIME 1989 GM sourced
00U Exterior Color,primary,prime,upper,union City Body — GM dated
00V Not Equipped with Heated or Ventilated Front Seats, see dealer for details Chevrolet Silverado 1500 2022–2023 Provisional
00Y Not Equipped with Rear Park Assist, see dealer for details Chevrolet Silverado 1500 2022–2023 Provisional
00Z Not Equipped with Front and Rear Park Assist, see dealer for details Chevrolet Silverado 1500 2022–2023 Provisional
010 Rat, M Ratio, 5.43 1991 GM dated
010 P RAT, M RATIO, 5.43 1991 GM sourced
011 Rat, M Ratio, 5.57 (5 4/7) 1991 GM dated
011 P RAT, M RATIO, 5.57 (5 4/7) 1991 GM sourced
012 Rat, M Ratio, 5.83 1991 GM dated
012 P RAT, M RATIO, 5.83 1991 GM sourced
013 Rat, M Ratio, 3.73 1995 GM dated
013 P RAT, M RATIO, 3.73 1995 GM sourced
014 Rat, M Ratio, 6.14 (6 1/7) 1991 GM dated
014 P RAT, M RATIO, 6.14 (6 1/7) 1991 GM sourced
015 Rat, M Ratio, 6.17 1991 GM dated
015 P RAT, M RATIO, 6.17 1991 GM sourced
016 Rat, M Ratio, 5.25 1991 GM dated
016 P RAT, M RATIO, 5.25 1991 GM sourced
017 Rat, M Ratio, 6.50 1991 GM dated
017 P RAT, M RATIO, 6.50 1991 GM sourced
018 Rat, M Ratio, 6.65 1989 GM dated
018 P RAT, M RATIO, 6.65 1989 GM sourced
019 Rat, M Ratio, 6.67 1989 GM dated
019 P RAT, M RATIO, 6.67 1989 GM sourced
01A Stc, R Stripe Color, Accent, Two Tone, Silver/gunmetal (1995) 1998 GM dated
01A P STC, R STRIPE COLOR, ACCENT, TWO TONE, SILVER/GUNMETAL (1995) 1998 GM sourced
01A Stripe Color Accent, Two Tone, Silver/gunmetal — GM dated
01A Trim Color Seat Jet Black — GM dated
01B Trim Color Seat LT Neutral — Reference
01C Trim Color Seat LT Titanium — Reference
01D Trim Color Seat LT Cashmere — Reference
01E Trim Color Seat DK Titanium — Reference

The full list, A to Z

Showing 101–200 of 427 codes beginning with H. One meaning shown per code — the best-sourced one we hold. Search above for the rest.

CodeMeaningYearsSourcing
H5Y Interior Trim Config Leather, Level 2, Var 1, Medium Cashmere / Very LI Ght Cashmere — Reference
H6O Interior Trim Config Leather, Level 1, Dark Sport — Reference
H6P Interior Trim Config Leather, Level 2, Jet Black/vecchio — Reference
H6Q Interior Trim Config Leather, Level 1, Medium Cashmere/vl Cashmere — Reference
HA1 P, FIN, R FLEET INCENTIVE, BEVERLY ENTERPRISES (W-TRK CKG), 20801 — Provisional
HA2 P, RAX, M AXLE REAR, 19,000 LB, EATON 11614, SINGLE SPEED 1998 Provisional
HA3 Axle,rear,5.29 Ratio — Reference
HA4 P, RAX, M AXLE REAR, 23,000 LB, EATON 17221, TWO SPEED 1998 Provisional
HA5 P, RAX, M AXLE REAR, 4.625 RATIO, 10,500 KG, SINGLE SPEED 1998 Provisional
HAA P, PARTS PKG, POWER CONVENIENCE GROUP 1998 GM sourced
HAB P, PARTS PKG, SATURN SL1 this code has more than one documented meaning — filter by year 1998 GM sourced
HAD Parts Pkg Saturn Sl3 — Reference
HAF P, SGR, R MERCHANDISED PKG, SATURN 3 DOOR 1998 GM sourced
HAG P, PARTS PKG, LEATHER *MERCHANDISING OPTION* 1999 GM sourced
HAH P, PARTS PKG, SC2 SPECIALTY VEHICLE, 11105 — Provisional
HAI P, PARTS PKG, AUDIO I, 10502 — Provisional
HAJ P, SGR, R MERCHANDISED PKG, SPRING SPECIALTY, 20307 — Provisional
HAK P, PARTS PKG, DVD I, 20114 — Provisional
HAL P, PLT, R PLANT CODE, HALOL, INDIA 1999 GM sourced
HAP P, PARTS PKG, PREMIUM SEDAN I, 10502 — Provisional
HAS P, APP, R APPEARANCE PACKAGE, 2001 "SILVER ANNIVERSARY", *MERCHANDISING OPTION*, 1005 — Provisional
HAT Family Code, Throttle Control 1990 GM dated
HAU P, PARTS PKG, AUDIO II, 10502 — Provisional
HAV P, SGR, R MERCHANDISED PKG, SATURN SL AUTOMATIC, 20129 — GM sourced
HAW P, SGR, R MERCHANDISED PKG, SATURN SUV UP FWD V6 AUTO, 20315 — Provisional
HAZ P, PARTS PKG, L100 SPECIAL, 11010 — Provisional
HB2 P, RAX, M AXLE REAR, 23000 LB, ROCKWELL RS-23145, SINGLE SPEED 1999 Provisional
HB3 P, RAX, M AXLE REAR, 23000 LB, ROCKWELL RS-23230, TWO SPEED 1999 Provisional
HB4 P, RAX, M AXLE REAR, 23000 LB, ROCKWELL RS-23240, TWO SPEED 1999 Provisional
HB6 P, RAX, M AXLE REAR, 19000 LB, ROCKWELL RS-19145, SINGLE SPEED 1998 Provisional
HB7 P, RAX, M AXLE REAR, 46000 LB ROCKWELL RT46-160P HEAVY DUTY AXLE, 131 E 8 — Provisional
HB8 P, RAX, M AXLE REAR, 40000 LB ROCKWELL RT40-145P STANDARD AXLE, 131 E 8 — Provisional
HBA P, SGR, R MERCHANDISED PKG, YELLOW SC2 1999 GM sourced
HBB P, APP, R APPEARANCE PACKAGE, LS BLACK BEAUTY, 720 — Provisional
HBC Parts Pkg Vue XR 4 Cylinder — Reference
HBD P, PARTS PKG, DVD VEHICLE, 11003 — Provisional
HBE P, SGR, R MERCHANDISED PKG, YELLOW/BLACK SC2, 511 — Provisional
HBF P, PARTS PKG, PREMIUM, 10719 — Provisional
HBL P, SGR, R MERCHANDISED PKG, SATURN SC2 1998 GM sourced
HBP P, PARTS PKG, PREMIUM WAGON I, 10502 — Provisional
HBR P, SGR, R MERCHANDISED PKG, SL1/SW1 BRONZE, 531 — Provisional
HBS P, PARTS PKG, COMFORT/SPORT I, 10502 — Provisional
HBW VIN Format China Type — Reference
HC1 P, RAX, M AXLE REAR, 4.62 RATIO 1998 GM sourced
HC2 P, RAX, M AXLE REAR, 4.27 RATIO 1994 GM sourced
HC3 P, RAX, M AXLE REAR, 5.12 RATIO 1998 GM sourced
HC4 4.56 rear axle ratio 2000 GM sourced
HC7 5.13 rear axle ratio 2000 GM sourced
HC8 P, RAX, M AXLE REAR, 4.87 RATIO 1998 GM sourced
HC9 P, RAX, M AXLE REAR, 5.125 RATIO, SINGLE SPEED 1985 GM sourced
HCA P, SGR, R MERCHANDISED PKG, SATURN 318 SUV BASE FWD, 926 — Provisional
HCB P, SGR, R MERCHANDISED PKG, SATURN 318 SUV BASE AWD, 926 — Provisional
HCC P, SGR, R MERCHANDISED PKG, SATURN 318 SUV MID FWD, 926 — Provisional
HCD P, SGR, R MERCHANDISED PKG, SATURN 318 SUV MID AWD, 926 — Provisional
HCE P, SGR, R MERCHANDISED PKG, SATURN 318 SUV UP FWD, 926 — Provisional
HCF P, SGR, R MERCHANDISED PKG, SATURN 318 SUV UP AWD, 926 — Provisional
HCG P, PARTS PKG, ROAD TRIP, 10129 — Provisional
HCH P, PARTS PKG, OVERHEAD CONVENIENCE, 10129 — Provisional
HCI P, COOLING SYSTEM, DUAL SPEED, 20117 — Provisional
HCL Interior Trim Config Leather, Level 1, Var 1 Jet Black / Jet Black — Reference
HCM P, PARTS PKG, COMFORT I, 10502 — Provisional
HCN P, PARTS PKG, CONVENIENCE, 20114 — Provisional
HCO P, PARTS PKG, COMFORT II, 20114 — Provisional
HCP P, PARTS PKG, CANADIAN POWER PACKAGE, 218 — Provisional
HCQ Interior Trim Config FRT ST Cloth, Level 1 / RR ST Vinyl, Level 1 - Jet Black — Reference
HCR Merchandised Pkg Sport Special Edition — Reference
HCS P, SGR, R MERCHANDISED PKG, 1999 HOMECOMING VEHICLE, 531 — Provisional
HCT Family Code, Headlamp Control 1995 GM dated
HCV P, SGR, R MERCHANDISED PKG, SATURN 1999 HOMECOMING VEHICLE 1998 GM sourced
HCW Interior Trim Config Leather, Level 1, Var 1 Jet Black / LT Titanium — Reference
HCX Interior Trim Config Leather, Level 1, Var 2 Jet Blk / LT Titanium / JE T Blk — Reference
HCY Interior Trim Config Leather, Level 1, Var 2 LT Titanium / LT Titanium / Jet Blk — Reference
HCZ P, PARTS PKG, MISCELLANEOUS CHASSIS, 21004 — GM sourced
HD1 Axle Rear 13,000 Lb,dana S130,single Speed — Reference
HD2 Axle Rear 13, 500 LB (6, 124 Kg), Dana S110 — Reference
HD3 Axle Rear 20,000 Lb, Eaton 20060s, Single Speed this code has more than one documented meaning — filter by year — Reference
HD7 Door handles, illuminating 2026 GM sourced
HDA P, PARTS PKG, COMFORT, 10307 — Provisional
HDB P, SGR, R MERCHANDISED PKG, CONVENIENCE VAR. 1, 10319 — Provisional
HDC P, SGR, R MERCHANDISED PKG, CONVENIENCE VAR. 2, 10319 — Provisional
HDD P, SGR, R MERCHANDISED PKG, CONVENIENCE VAR. 3, 10319 — Provisional
HDE P, SGR, R MERCHANDISED PKG, CONVENIENCE VAR. 4, 10319 — Provisional
HDF P, SGR, R MERCHANDISED PKG, CONVENIENCE VAR. 5, 10319 — Provisional
HDG P, SGR, R MERCHANDISED PKG, CONVENIENCE VAR. 6, 10321 — Provisional
HDJ P, PARTS PKG, PREMIUM II, 10823 — Provisional
HDK Interior Trim Config Leather, Level 1, Var 3 Red Curry/red Curry — Reference
HDL Family Code, Headlamps 1999 GM dated
HDN Ornamentation Emblem, 'holden' — Reference
HDO P, PARTS PKG, DVD, 10827 — Provisional
HDP P, PARTS PKG, SPORTS II, 10823 — Provisional
HDS P, PARTS PKG, DVD SPORT, 10426 — Provisional
HDT Interior Trim Config Leather, Level 1, Var 3 Jet Black / Red Curry — Reference
HDU Interior Trim Config Leather, Level 1, Var 3 Jet Black / Jet Black — Reference
HDV P, APP, R, APPEARANCE PACKAGE, DVD INTRO VEHICLE, 10403 — Provisional
HDW P, PARTS PKG, DVD/COMFORT, 10827 — Provisional
HDX Interior Trim Config Leather, Level 2, Mocha Natural / Jet Black — Reference
HDY Interior Trim Config Leather, Level 3, Jet Black / Morello Red — Reference
HDZ Interior Trim Config Leather, Level 2, Medium Cashmere / Very Light Cas Hmere — Reference
HE3 P, RAX, M, AXLE REAR, 3.07 RATIO, 3,500 LBS, SINGLE SPEED, TRUCK this code has more than one documented meaning — filter by year 1998 GM sourced
HE4 Axle,rear,3.40 Ratio — Reference

Using the master list

This is the full GM RPO code list we hold — every Regular Production Option code in the database, searchable by code or by description and filterable to a single model year. Most RPO lists on the internet run to a couple of hundred codes copied from one service manual. This one holds 24,366, and tells you where each meaning came from.

What an RPO code is

RPO stands for Regular Production Option. Every piece of factory equipment on a GM vehicle carries a three-character code, and the ones fitted to your truck are printed on the Service Parts Identification label in the glove box or on the door jamb. G80 is a locking differential, Z71 is an off-road suspension package, K05 is a block heater.

They matter because they are what the factory actually built, not what a listing claims. If you are buying a truck, the label settles the argument. If you are ordering parts, the axle and transmission codes decide which part fits.

Why the same code means different things

GM has reused these codes for decades and across every division. A code that means one thing on a 1978 pickup can mean something unrelated on a 2015 SUV, and plenty of entries in circulation come from bulk listings with no year and no document behind them.

So every entry here is labelled with where it came from. GM sourced means we hold an actual GM document for it. GM dated means it comes from the option master with a date attached. Reference means it is in general circulation with nothing dated behind it — still useful, but treat it as a lead rather than a fact. Filtering by your model year is the single best way to get an answer you can rely on.

Read the codes off your own label

If you have the sticker in front of you, the RPO decoder will read a photo of it and decode every code at once, checked against your model year.

FullSizeChevy.com is not affiliated with, endorsed by, or sponsored by General Motors. Chevrolet, GMC, Cadillac, Silverado, Sierra and related marks are trademarks of General Motors LLC and are used here only to identify applicable vehicles. RPO meanings vary by model year, platform and configuration — verify against your own label before buying parts.

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