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 601–700 of 931 codes beginning with O. One meaning shown per code — the best-sourced one we hold. Search above for the rest.

CodeMeaningYearsSourcing
OQS P, LOCAL, GM OF EUROPE (OQS), 217 — Provisional
OQT P, LOCAL, GM OF EUROPE (OQT), 217 — Provisional
OQU P, LOCAL, GM OF EUROPE (OQU), 217 — Provisional
OQV P, LOCAL, GM OF EUROPE (OQV), 217 — Provisional
OQW P, LOCAL, GM OF EUROPE (OQW), 217 — Provisional
OQX P, LOCAL, GM OF EUROPE (OQX), 217 — Provisional
OQY P, LOCAL, GM OF EUROPE (OQY), 217 — Provisional
OQZ P, LOCAL, GM OF EUROPE (OQZ), 217 — Provisional
OR0 P, LOCAL, GM OF EUROPE OR0 1992 GM sourced
OR1 P, CONTROL, SALES (GM DRIVE-TRIM SUFFIX) TRIM CHANGE INDEX 1 1998 GM sourced
OR2 P, CONTROL, SALES (GM DRIVE-TRIM SUFFIX) TRIM CHANGE INDEX 2 1998 GM sourced
OR3 P, CONTROL, SALES (GM DRIVE-TRIM SUFFIX) TRIM CHANGE INDEX 3 1998 GM sourced
OR4 P, CONTROL, GME LOCAL (4), 20220 — Provisional
OR5 P, CONTROL, SALES (GM DRIVE-TRIM SUFFIX) TRIM CHANGE INDEX 5 1998 GM sourced
OR6 P, CONTROL, SALES (GM DRIVE-TRIM SUFFIX) TRIM CHANGE INDEX 6 1998 GM sourced
OR7 P, CONTROL, SALES (GM DRIVE-TRIM SUFFIX) TRIM CHANGE INDEX 7 1998 GM sourced
OR8 P, CONTROL, GME LOCAL (8), 20220 — Provisional
OR9 P, CONTROL, SALES (GM DRIVE-TRIM SUFFIX) TRIM CHANGE INDEX 9 1998 GM sourced
ORA P, LOCAL, GM OF EUROPE (ORA), 217 — Provisional
ORB P, LOCAL, GM OF EUROPE (ORB), 217 — Provisional
ORC P, LOCAL, GM OF EUROPE (ORC), 217 — Provisional
ORD P, LOCAL, GM OF EUROPE (ORD), 217 — Provisional
ORE P, LOCAL, GM OF EUROPE (ORE), 217 — Provisional
ORF P, LOCAL, GM OF EUROPE (ORF), 217 — Provisional
ORG P, LOCAL, GM OF EUROPE (ORG), 217 — Provisional
ORH P, LOCAL, GM OF EUROPE (ORH), 217 — Provisional
ORI P, LOCAL, GM OF EUROPE (ORI), 217 — Provisional
ORJ P, LOCAL, GM OF EUROPE (ORJ), 217 — Provisional
ORK P, LOCAL, GM OF EUROPE (ORK), 217 — Provisional
ORL P, LOCAL, GM OF EUROPE (ORL), 217 — Provisional
ORM P, LOCAL, GM OF EUROPE (ORM), 217 — Provisional
ORN P, PLT, R, PLANT CODE, ORION, MI, USA this code has more than one documented meaning — filter by year 1997 GM sourced
ORO P, LOCAL, GM OF EUROPE (ORO), 217 — Provisional
ORP P, LOCAL, GM OF EUROPE (ORP), 217 — Provisional
ORQ P, LOCAL, GM OF EUROPE (ORQ), 217 — Provisional
ORR P, LOCAL, GM OF EUROPE (ORR), 217 — Provisional
ORS P, LOCAL, GM OF EUROPE (ORS), 217 — Provisional
ORT P, LOCAL, GM OF EUROPE (ORT), 217 — Provisional
ORU P, LOCAL, GM OF EUROPE (ORU), 217 — Provisional
ORV P, LOCAL, GM OF EUROPE (ORV), 217 — Provisional
ORW P, LOCAL, GM OF EUROPE (ORW), 217 — Provisional
ORX P, LOCAL, GM OF EUROPE (ORX), 217 — Provisional
ORY P, LOCAL, GM OF EUROPE (ORY), 217 — Provisional
ORZ P, LOCAL, GM OF EUROPE (ORZ), 217 — Provisional
OS0 P, LOCAL, GM OF EUROPE OS0 1992 GM sourced
OS1 P, LOCAL, GM OF EUROPE OS1 1992 GM sourced
OS2 P, LOCAL, GM OF EUROPE OS2 1992 GM sourced
OS3 P, LOCAL, GM OF EUROPE OS3 1992 GM sourced
OS4 P, LOCAL, GM OF EUROPE OS4 1992 GM sourced
OS5 P, LOCAL, GM OF EUROPE OS5 1992 GM sourced
OS6 P, LOCAL, GM OF EUROPE OS6, 20627 — Provisional
OS7 P, LOCAL, GM OF EUROPE OS7 1992 GM sourced
OS8 P, LOCAL, GM OF EUROPE OS8 1992 GM sourced
OS9 P, LOCAL, GM OF EUROPE OS9 1992 GM sourced
OSA P, LOCAL, GM OF EUROPE (OSA), 217 — Provisional
OSB P, LOCAL, GM OF EUROPE (OSB), 217 — Provisional
OSC P, LOCAL, GM OF EUROPE (OSC), 217 — Provisional
OSD P, LOCAL, GM OF EUROPE (OSD), 217 — Provisional
OSE P, LOCAL, GM OF EUROPE (OSE), 217 — Provisional
OSF P, LOCAL, GM OF EUROPE (OSF), 217 — Provisional
OSG P, PLT, R, PLANT CODE, OSHAWA, ONT, CANADA (TRK) 1998 GM sourced
OSH P, PLT, R, PLANT CODE, OSHAWA 1, ONT, CANADA this code has more than one documented meaning — filter by year 1997 GM sourced
OSI P, LOCAL, GM OF EUROPE (OSI), 217 — Provisional
OSJ P, LOCAL, GM OF EUROPE (OSJ), 217 — Provisional
OSK P, LOCAL, GM OF EUROPE (OSK), 217 — Provisional
OSL P, LOCAL, GM OF EUROPE (OSL), 217 — Provisional
OSM P, LOCAL, GM OF EUROPE (OSM), 217 — Provisional
OSN P, LOCAL, GM OF EUROPE (OSN), 217 — Provisional
OSO P, LOCAL, GM OF EUROPE (OSO), 217 — Provisional
OSP P, LOCAL, GM OF EUROPE (OSP), 217 — Provisional
OSQ P, LOCAL, GM OF EUROPE (OSQ), 217 — Provisional
OSR P, LOCAL, GM OF EUROPE (OSR), 217 — Provisional
OSS P, LOCAL, GM OF EUROPE (OSS), 217 — Provisional
OST P, PLT, R, PLANT CODE, OSHAWA 2, ONT, CANADA this code has more than one documented meaning — filter by year 1997 GM sourced
OSU P, LOCAL, GM OF EUROPE (OSU), 217 — Provisional
OSV P, LOCAL, GM OF EUROPE (OSV), 217 — Provisional
OSW P, LOCAL, GM OF EUROPE (OSW), 217 — Provisional
OSX P, LOCAL, GM OF EUROPE (OSX), 217 — Provisional
OSY P, LOCAL, GM OF EUROPE (OSY), 217 — Provisional
OSZ P, LOCAL, GM OF EUROPE (OSZ), 217 — Provisional
OT0 P, LOCAL, GM OF EUROPE OT0 1992 GM sourced
OT1 P, LOCAL, GM OF EUROPE OT1, 20220 — Provisional
OT2 P, LOCAL, GM OF EUROPE OT2 1992 GM sourced
OT3 P, LOCAL, GM OF EUROPE OT3, 21014 — Provisional
OT4 P, LOCAL, GM OF EUROPE OT4 1992 GM sourced
OT5 P, LOCAL, GM OF EUROPE OT5 1992 GM sourced
OT6 P, LOCAL, GM OF EUROPE OT6, 21106 — Provisional
OT7 P, LOCAL, GM OF EUROPE OT7 1992 GM sourced
OT8 P, LOCAL, GM OF EUROPE OT8 1992 GM sourced
OT9 P, LOCAL, GM OF EUROPE OT9 1992 GM sourced
OTA P, LOCAL, GM OF EUROPE (OTA), 217 — Provisional
OTB P, LOCAL, GM OF EUROPE (OTB), 217 — Provisional
OTC P, LOCAL, GM OF EUROPE (OTC), 217 — Provisional
OTD P, LOCAL, GM OF EUROPE (OTD), 217 — Provisional
OTE P, LOCAL, GM OF EUROPE (OTE), 217 — Provisional
OTF P, LOCAL, GM OF EUROPE (OTF), 217 — Provisional
OTG P, LOCAL, GM OF EUROPE (OTG), 217 — Provisional
OTH P, LOCAL, GM OF EUROPE (OTH), 217 — Provisional
OTI P, LOCAL, GM OF EUROPE (OTI), 217 — Provisional
OTJ P, LOCAL, GM OF EUROPE (OTJ), 217 — Provisional

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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