GM RPO Code Database

← All owner tools  ·  Decode your own SPID label with the GM RPO decoder

By FullSizeChevy.com Updated

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 643 codes beginning with W. One meaning shown per code — the best-sourced one we hold. Search above for the rest.

CodeMeaningYearsSourcing
W3V P, NPC, M, CONVERSION NAME PLT, EMBLEM "VAR. 4" 1998 Provisional
W3W P, FLP, R, FLEET SALES, BRITISH TELEKOM 1997 Provisional
W3X P, EVC, R, ENGINE PLANT, SZENTGOTTHARD, HUNGARY 1997 Provisional
W3Y P, ORNAMENTATION, NAME PLATE "JOY" 1997 Provisional
W40 Sales Package Pontiac 'gto' 40th Anniversary — Reference
W41 Merchandised Pkg High Output Quad 442 — Reference
W42 P, PERFORMANCE PACKAGE, HIGH SPEED-EXPORT VEHICLE 1994 GM sourced
W43 Package Skylark 'olympic' — Reference
W44 Merchandised Pkg Sport Achieva SC — Reference
W45 International Series Coupe Package(mexican Domestic Use Only) — Reference
W46 P, MSM, R, MODEL CONVERSION, PONTIAC GRAND AM 'SE1' 1998 GM sourced
W47 P, MSM, R, MODEL CONVERSION, PONTIAC GRAND AM 'SE2' 1998 GM sourced
W48 P, MSM, R, MODEL CONVERSION, PONTIAC GRAND AM 'GT1' 1998 GM sourced
W49 P, MAR, M, MARKET BRAND, BUICK, 20107 this code has more than one documented meaning — filter by year — GM sourced
W4A P, MSM, R, MODEL CONVERSION, MIDLEVEL 1997 Provisional
W4C P, FLP, R, FLEET SALES, SPECIAL CUSTOMERS 1998 Provisional
W4D P, FLP, R, FLEET SALES, CIVIL AUTHORITY 1997 GM sourced
W4E P, EQUIPMENT, PHONE 1999 Provisional
W4F P, FLP, R, FLEET SALES, DRIVING SCHOOL 1997 Provisional
W4G P, FLP, R, FLEET SALES, POLICE CAR 1997 GM sourced
W4H P, IDT, M, TRIM, CLOTH, CAMPAIGN, VAR 3 1998 GM sourced
W4I P, IDT, M, TRIM, CLOTH, APOLLO/AMANA, 413 E 0 — Provisional
W4J P, MSM, R, MODEL CONVERSION, CD 1998 Provisional
W4K P, VEHICLE, IRMSCHER UPFIT 1997 Provisional
W4L P, VEHICLE, UPFIT 1999 Provisional
W4M P, EQUIPMENT, SOUTH AFRICA - BRAZIL TEMPORARY OPTION 1997 Provisional
W4N P, MSM, R, MODEL CONVERSION, JOY/FLAIR 1997 Provisional
W4O P, VEHICLE, UPFIT VAR.2 1999 Provisional
W4P P, IDT, M, TRIM, CLOTH, CAMPAIGN, VAR 12 1998 Provisional
W4Q P, COVERING, LOAD COMPT - DELETE 1998 Provisional
W4R P, IDT, M, TRIM, CLOTH, CAMPAIGN, VAR 6 1998 GM sourced
W4S P, IDT, M, TRIM, CLOTH, CAMPAIGN, VAR 7 1998 GM sourced
W4T P, IDT, M, TRIM, CLOTH, CAMPAIGN, VAR 8 1998 GM sourced
W4U P, IDT, M, TRIM, CLOTH, DELUXE, VAR 1 1999 GM sourced
W4V P, IDT, M, TRIM, CLOTH, CAMPAIGN, VAR 9 1998 Provisional
W4W P, IDT, M, TRIM, CLOTH, CAMPAIGN, VAR 10 1998 Provisional
W4X P, IDT, M, TRIM, CLOTH, CAMPAIGN, VAR 11 1998 Provisional
W4Y P, CONTROL, SALES (GM DRIVE-EUROPE) 1998 Provisional
W4Z P, NPC, M, CONVERSION NAME PLT, EMBLEM "SPORT" 1998 Provisional
W50 Appearance Group(special) — Reference
W51 P, EST, M, ENTERTAINMENT SYSTEM, OPTION A 1994 GM sourced
W52 P, EST, M, ENTERTAINMENT SYSTEM, OPTION B 1994 GM sourced
W53 P, EST, M, ENTERTAINMENT SYSTEM, OPTION C 1994 GM sourced
W54 P, EST, M, ENTERTAINMENT SYSTEM, OPTION D 1994 GM sourced
W55 P, EST, M, ENTERTAINMENT SYSTEM, OPTION E 1994 GM sourced
W56 P, EST, M, ENTERTAINMENT SYSTEM, OPTION F 1994 GM sourced
W57 P, EST, M, ENTERTAINMENT SYSTEM, OPTION G 1994 GM sourced
W58 P, EST, M, ENTERTAINMENT SYSTEM, OPTION H 1995 GM sourced
W59 P, EST, M, ENTERTAINMENT SYSTEM, OPTION I 1995 GM sourced
W5A P, MSM, R, MODEL CONVERSION, TREND 1999 Provisional
W5B P, CND, R, CONVENIENCE PKG, EDITION 'OPC' 1998 Provisional
W5C P, NPC, M, CONVERSION NAME PLT, "CITY" 1998 Provisional
W5D P, NPC, M, CONVERSION NAME PLT, "ASCOT" 1998 Provisional
W5E P, ORNAMENTATION, NAME PLATE "FREE" 1997 Provisional
W5F P, SALES PACKAGE, EQUIPMENT - GREEN CAR, 11026 E 0 — Provisional
W5G P, NPC, M, CONVERSION NAME PLT, "SELECTION" 1998 Provisional
W5H P, ORNAMENTATION, LETTERING "775" 1997 Provisional
W5I P, IDT, M, TRIM, CLOTH, MIDLEVEL, VAR 1 1999 GM sourced
W5J P, ORNAMENTATION, LETTERING "CITY" LATERAL, ABOVE 1998 Provisional
W5K P, ORNAMENTATION, NAME PLATE "FLAIR" 1997 Provisional
W5L P, VEHICLE, DELIVERY WAGON 1997 Provisional
W5M P, NPC, M CONVERSION NAME PLT, EMBLEM "VAR. 1" 1998 Provisional
W5N P, LOCAL, ADDITIONAL, CONV, 1024 E 0 — Provisional
W5O P, MSM, R MODEL CONVERSION, SWING, 10315 E 8 — Provisional
W5P P, SALES PACKAGE, EQUIPMENT-CARGO 1997 GM sourced
W5Q P, ORNAMENTATION, NAME PLATE "COMBO", RR - DELETE 1998 Provisional
W5R P, ORNAMENTATION, NAME PLATE "TIGRA", RR - DELETE 1998 Provisional
W5S P, PNO, M PANEL (OPEL), TRIM, INNER, CAMPAIGN, VAR.2 1999 Provisional
W5T P, ORNAMENTATION, ENGINE BADGE - DELETE 1998 GM sourced
W5U P, IDT, M TRIM, LEATHER, DELUXE, VAR 1 1998 Provisional
W5V P, ORNAMENTATION, LETTERING "V8" RR 1998 Provisional
W5X P, NPC, M CONVERSION NAME PLT, "EXCLUSIVE", 718 E 0 — Provisional
W5Y P, IDT, M TRIM, - DELETE 1998 Provisional
W5Z P, IDT, M TRIM, LEATHER, DELUXE 1998 GM sourced
W60 Espirit Special Appearance — Reference
W62 P, EQUIPMENT, GTO PERFORMANCE PACKAGE, 20522 E 8 — GM sourced
W63 Model Conversion Cadillac - Entry Level — Reference
W64 Sunbird Wagon,special Parts Group — Reference
W66 P, SGR, R MERCHANDISED PKG, PONTIAC FIREBIRD FORMULA 1998 GM sourced
W67 Espirit,luxury — Reference
W68 P, SALES PACKAGE, FIREBIRD GROUND EFFECTS this code has more than one documented meaning — filter by year 1997 Provisional
W69 Special Edition Option — Reference
W6A P, IDT, M TRIM, CLOTH, CAMPAIGN, VAR 2 1998 GM sourced
W6B P, IDT, M TRIM, CLOTH, STANDARD, VAR 4 1998 GM sourced
W6C P, IDT, M TRIM, CLOTH, STANDARD, VAR 1 1999 GM sourced
W6D P, IDT, M TRIM, CLOTH, SPORT, VAR 1 1998 GM sourced
W6E P, IDT, M TRIM, CLOTH, DELUXE 1995 GM sourced
W6F P, IDT, M TRIM, CLOTH, SUPER SPORT 1995 GM sourced
W6G P, IDT, M TRIM, CLOTH, SUPER DELUXE, VAR 1 1998 GM sourced
W6H P, IDT, M TRIM, CLOTH, DELUXE, VAR 2 1998 GM sourced
W6I P, IDT, M TRIM, CLOTH, ULTRA DELUXE, VAR. 2 1999 GM sourced
W6J P, IDT, M TRIM, CLOTH, SPORT, VAR 2 1999 GM sourced
W6K P, IDT, M TRIM, VINYL 1997 GM sourced
W6L P, IDT, M TRIM, CLOTH, CAMPAIGN, VAR 1 1998 GM sourced
W6M P, IDT, M TRIM, CLOTH, ULTRA-DELUXE 1998 GM sourced
W6N P, IDT, M TRIM, CLOTH, STANDARD, VAR 3 1998 GM sourced
W6P P, IDT, M TRIM, CLOTH, UPPER LEVEL 1997 GM sourced
W6Q P, IDT, M TRIM, CLOTH, CAMPAIGN 1997 GM sourced
W6R P, IDT, M TRIM, LEATHER 1998 GM sourced
W6S P, IDT, M TRIM, LEATHER, BEIGE 1997 GM sourced

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.

Scroll to Top