GM RPO Code Database

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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 201–300 of 931 codes beginning with O. One meaning shown per code — the best-sourced one we hold. Search above for the rest.

CodeMeaningYearsSourcing
OFJ P, LOCAL, GM OF EUROPE OFJ 1992 GM sourced
OFK P, LOCAL, GM OF EUROPE OFK 1992 GM sourced
OFM P, LOCAL, GM OF EUROPE OFM 1992 GM sourced
OFN P, LOCAL, GM OF EUROPE OFN 1992 GM sourced
OFO P, LOCAL, GM OF EUROPE OFO 1992 GM sourced
OFP P, LOCAL, GM OF EUROPE OFP 1992 GM sourced
OFQ P, LOCAL, GM OF EUROPE OFQ 1992 GM sourced
OFR P, LOCAL, GM OF EUROPE OFR 1992 GM sourced
OFS P, LOCAL, GM OF EUROPE OFS 1992 GM sourced
OFT P, LOCAL, GM OF EUROPE OFT 1992 GM sourced
OFU P, LOCAL, GM OF EUROPE OFU 1992 GM sourced
OFV P, LOCAL, GM OF EUROPE OFV 1992 GM sourced
OFW P, LOCAL, GM OF EUROPE OFW 1992 GM sourced
OFX P, LOCAL, GM OF EUROPE OFX 1992 GM sourced
OFY P, LOCAL, GM OF EUROPE OFY 1992 GM sourced
OFZ P, LOCAL, GM OF EUROPE OFZ 1992 GM sourced
OG0 P, LOCAL, GM OF EUROPE OG0 1992 GM sourced
OG1 P, LOCAL, GM OF EUROPE OG1 1992 GM sourced
OG2 P, LOCAL, GM OF EUROPE OG2 1992 GM sourced
OG3 P, LOCAL, GM OF EUROPE OG3 1992 GM sourced
OG4 P, LOCAL, GM OF EUROPE OG4 1992 GM sourced
OG5 P, LOCAL, GM OF EUROPE OG5 1992 GM sourced
OG6 P, LOCAL, GM OF EUROPE OG6, 11105 — Provisional
OG7 P, LOCAL, GM OF EUROPE OG7 1992 GM sourced
OG8 P, LOCAL, GM OF EUROPE OG8 1992 GM sourced
OG9 P, LOCAL, GM OF EUROPE OG9 1992 GM sourced
OGA P, LOCAL, GM OF EUROPE OGA - RUSSELSHEIM, OPEL SPECIAL VEHICLE CONTROL, 20612 — GM sourced
OGB P, LOCAL, GM OF EUROPE OGB 1992 GM sourced
OGC P, LOCAL, GM OF EUROPE OGC 1992 GM sourced
OGD P, LOCAL, GM OF EUROPE OGD 1992 GM sourced
OGE P, LOCAL, GM OF EUROPE OGE 1992 GM sourced
OGF P, LOCAL, GM OF EUROPE OGF 1992 GM sourced
OGG P, LOCAL, GM OF EUROPE OGG 1992 GM sourced
OGH P, LOCAL, GM OF EUROPE OGH 1992 GM sourced
OGI P, LOCAL, GM OF EUROPE OGI - BOCHUM, OPEL SPECIAL VEHICLE CONTROL, 20612 — Provisional
OGJ P, LOCAL, GM OF EUROPE OGJ 1992 GM sourced
OGK P, LOCAL, GM OF EUROPE OGK 1992 GM sourced
OGL P, LOCAL, GM OF EUROPE OGL 1992 GM sourced
OGM P, LOCAL, GM OF EUROPE OGM 1992 GM sourced
OGN P, LOCAL, GM OF EUROPE OGN 1992 GM sourced
OGO P, LOCAL, GM OF EUROPE OGO 1992 GM sourced
OGP P, LOCAL, GM OF EUROPE OGP 1992 GM sourced
OGQ P, LOCAL, GM OF EUROPE OGQ 1992 GM sourced
OGR P, LOCAL, GM OF EUROPE OGR 1992 GM sourced
OGS P, LOCAL, GM OF EUROPE OGS 1992 GM sourced
OGT P, LOCAL, GM OF EUROPE OGT 1992 GM sourced
OGU P, LOCAL, GM OF EUROPE OGU 1992 GM sourced
OGV P, LOCAL, GM OF EUROPE OGV 1992 GM sourced
OGW P, LOCAL, GM OF EUROPE OGW 1992 GM sourced
OGX P, LOCAL, GM OF EUROPE OGX 1992 GM sourced
OGY P, LOCAL, GM OF EUROPE OGY 1992 GM sourced
OGZ P, LOCAL, GM OF EUROPE OGZ 1992 GM sourced
OH0 P, LOCAL, GM OF EUROPE OH0 1992 GM sourced
OH1 P, LOCAL, GM OF EUROPE OH1 1992 GM sourced
OH2 P, LOCAL, GM OF EUROPE OH2 1992 GM sourced
OH3 P, LOCAL, GM OF EUROPE OH3 1992 GM sourced
OH4 P, LOCAL, GM OF EUROPE OH4 1992 GM sourced
OH5 P, LOCAL, GM OF EUROPE OH5 1992 GM sourced
OH6 P, LOCAL, GM OF EUROPE OH6 1992 GM sourced
OH7 P, LOCAL, GM OF EUROPE OH7 1992 GM sourced
OH8 P, LOCAL, GM OF EUROPE OH8 1992 GM sourced
OH9 P, LOCAL, GM OF EUROPE OH9 1992 GM sourced
OHA P, LOCAL, GM OF EUROPE OHA 1992 GM sourced
OHB P, LOCAL, GM OF EUROPE OHB 1992 GM sourced
OHC P, LOCAL, GM OF EUROPE OHC 1992 GM sourced
OHD P, LOCAL, GM OF EUROPE OHD 1992 GM sourced
OHE P, LOCAL, GM OF EUROPE OHE 1992 GM sourced
OHF P, LOCAL, GM OF EUROPE OHF 1992 GM sourced
OHG P, LOCAL, GM OF EUROPE OHG 1992 GM sourced
OHH P, LOCAL, GM OF EUROPE OHH 1992 GM sourced
OHI P, LOCAL, GM OF EUROPE OHI 1992 GM sourced
OHJ P, LOCAL, GM OF EUROPE OHJ 1992 GM sourced
OHK P, LOCAL, GM OF EUROPE OHK 1992 GM sourced
OHL P, LOCAL, GM OF EUROPE OHL 1992 GM sourced
OHM P, LOCAL, GM OF EUROPE OHM 1992 GM sourced
OHN P, LOCAL, GM OF EUROPE OHN 1992 GM sourced
OHO P, LOCAL, GM OF EUROPE OHO 1992 GM sourced
OHP P, LOCAL, GM OF EUROPE OHP 1992 GM sourced
OHQ P, LOCAL, GM OF EUROPE OHQ 1992 GM sourced
OHR P, LOCAL, GM OF EUROPE OHR 1992 GM sourced
OHS P, LOCAL, GM OF EUROPE OHS 1992 GM sourced
OHT P, LOCAL, GM OF EUROPE OHT 1992 GM sourced
OHU P, LOCAL, GM OF EUROPE OHU 1992 GM sourced
OHV P, LOCAL, GM OF EUROPE OHV 1992 GM sourced
OHW P, LOCAL, GM OF EUROPE OHW 1992 GM sourced
OHX P, LOCAL, GM OF EUROPE OHX 1992 GM sourced
OHY P, LOCAL, GM OF EUROPE OHY 1992 GM sourced
OHZ P, LOCAL, GM OF EUROPE OHZ 1992 GM sourced
OI0 P, LOCAL, GM OF EUROPE OI0 1992 GM sourced
OI1 P, LOCAL, GM OF EUROPE OI1 1992 GM sourced
OI2 P, LOCAL, GM OF EUROPE OI2 1992 GM sourced
OI3 P, LOCAL, GM OF EUROPE OI3 1992 GM sourced
OI4 P, LOCAL, GM OF EUROPE OI4, 20220 — Provisional
OI5 P, LOCAL, GM OF EUROPE OI5 1992 GM sourced
OI6 P, LOCAL, GM OF EUROPE OI6 1992 GM sourced
OI7 P, LOCAL, GM OF EUROPE OI7, 20220 — Provisional
OI8 P, LOCAL, GM OF EUROPE OI8 1992 GM sourced
OI9 P, LOCAL, GM OF EUROPE OI9 1992 GM sourced
OIA P, LOCAL, GM OF EUROPE OIA 1992 GM sourced
OIB P, LOCAL, GM OF EUROPE OIB 1992 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.

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