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 201–300 of 777 codes beginning with R. One meaning shown per code — the best-sourced one we hold. Search above for the rest.

CodeMeaningYearsSourcing
R8S OnStar One Super Cruise Extension to 8 Years 2026 GM sourced
R8T P, CONTROL, SALES ITEM NO. 69 1988 GM sourced
R8U P, CONTROL, SALES ITEM NO. 70 1988 GM sourced
R8V P, CONTROL, SALES ITEM NO. 71 1988 GM sourced
R8W ONSTAR ONE FLEET - 60 MONTHS OF SERVICE 2026 GM sourced
R8X P, CONTROL, SALES ITEM NO. 73 1988 GM sourced
R8Y P, CONTROL, SALES ITEM NO. 74 1988 GM sourced
R8Z ONSTAR ONE FLEET - 48 MONTHS OF SERVICE 2026 GM sourced
R9A P, CONTROL, SALES ITEM NO. 76 1988 GM sourced
R9B P, CONTROL, SALES ITEM NO. 77 1988 GM sourced
R9C P, CONTROL, SALES ITEM NO. 78 1988 GM sourced
R9D P, CONTROL, SALES ITEM NO. 79 1988 GM sourced
R9E P, CONTROL, SALES ITEM NO. 80 1988 GM sourced
R9F P, CONTROL, SALES ITEM NO. 81 this code has more than one documented meaning — filter by year 1988 GM sourced
R9G P, CONTROL, SALES ITEM NO. 82 1988 GM sourced
R9H P, CONTROL, SALES ITEM NO. 83 1988 GM sourced
R9I P, CONTROL, SALES ITEM NO. 84 1988 GM sourced
R9J Removes 3 Years of OnStar One and 3 Years of OnStar One with Super Cruise 2026 GM sourced
R9K P, CONTROL, SALES ITEM NO. 86 1988 GM sourced
R9L Removes 3 Years of OnStar One and 3 Years of OnStar One with Super Cruise upgrade 2026 GM sourced
R9M 3 Years OnStar One 2026 GM sourced
R9N P, CONTROL, SALES ITEM NO. 89 1988 GM sourced
R9P P, CONTROL, SALES ITEM NO. 90 1988 GM sourced
R9Q P, CONTROL, SALES ITEM NO. 91 1988 GM sourced
R9R P, CONTROL, SALES ITEM NO. 92 1988 GM sourced
R9S P, CONTROL, SALES ITEM NO. 93 1988 GM sourced
R9T P, CONTROL, SALES ITEM NO. 94 1988 GM sourced
R9U P, CONTROL, SALES ITEM NO. 95 1988 GM sourced
R9V Mobile Service Plus 2026 GM sourced
R9W Deleted Mobile Service Plus 2026 GM sourced
R9X P, CONTROL, SALES ITEM NO. 98 1988 GM sourced
R9Y Mobile Service Plus this code has more than one documented meaning — filter by year 2026 GM sourced
R9Z P, CONTROL, SALES ITEM NO.100 1997 GM sourced
RA0 Equipment Ski Sleeve, RR Seat — Reference
RA1 P, PERFORMANCE PACKAGE, RAM AIR (FORCED AIR) 1994 GM sourced
RA3 Tire All P225/45r17 SL 90h BW Al3 — Reference
RA6 Tire All P225/45r17 SL 90v BW Rf3 — Reference
RA8 Tire All P215/60r16 SL 94h BW Als — Reference
RA9 Tire All P225/55r17 SL 95 H BW Al2 — Reference
RAC Family Code, Control RR Axle 1990 GM dated
RAD Family Code, Radiator 1990 GM dated
RAE P, EQUIPMENT, CARGO MANAGEMENT SYSTEM this code has more than one documented meaning — filter by year 1998 GM sourced
RAF Tire All P235/50r17 SL 95t BW Als — Reference
RAJ Tire All P205/70r16 SL 96h BW Al2 — Reference
RAK Tire All P215/55r18 SL 94h BW Al3 — Reference
RAL Tire All P245/40r20 SL 95v BW Al3 — Reference
RAM Tire All 185/60r14 SL 82h BW Als — Reference
RAN Tire All 185/60r14 SL 82h BW Hwy — Reference
RAO Radio Base — Reference
RAP Wheel 17 X 8.0, J, Steel, Design 1 — Reference
RAS Family Code, Reactor System 1997 GM dated
RAT Family Code, Ratio 1988 GM dated
RAU P, WHF, M, WHEEL FRT, 22.5 X 6.75, 10 HOLE, 11.25 BC this code has more than one documented meaning — filter by year 1998 GM sourced
RAV P, WHR, M, WHEEL RR, 22.5 X 6.75, 10 HOLE, 11.25 BC this code has more than one documented meaning — filter by year 1998 GM sourced
RAX Family Code, Axle RR 1998 GM dated
RAY Tire All 205/70r16 SL 96h BW Hw3 — Reference
RAZ Tire All 215/55r18 SL 94h BW Hw4 — Reference
RB0 Tire Spare 185/55r15 SL 82v BW Hwy — Reference
RB1 P, CONTROL, MODULAR I/P 1999 GM sourced
RB4 Tire Spare 185/60r14 SL 82h BW Als — Reference
RB5 Tire Spare 185/60r14 SL 82h BW Hwy — Reference
RB6 Tire Spare 185/55r15 SL 82v BW Als — Reference
RB7 Tire All 225/40zr18 XL 92v BW Rf3 — Reference
RB9 Wheels, 18 inch Gloss Black with Etched ZR2 logo 2026 GM sourced
RBA P, RAIL, PUBX BED, BRUSHED AL, 20606 — GM sourced
RBB Tire All P215/55r17 SL 93h BW Als — Reference
RBC Tire All P185/55r15 SL 82t BW Al2 — Reference
RBH Wheel 19 X 7, Aluminum, Machined — Reference
RBJ Wheels, 18 inch AEV Black Gloss Aluminum Wheels with Laser Etching and AEV branded centre cap 2026 GM sourced
RBK Wheel 16 X 7.0, J, Steel, Design 2 — Reference
RBL Wheel 16 X 7.0, J, Steel, Design 3 — Reference
RBM Wheel 19 X 7.0, J, Aluminum, Design 2 — Reference
RBN P, WHF, M, WHEEL FRT, 22.5 X 8.25, 10 HOLE, 11.25 BC BS, DCT (ALCOA, 88300) this code has more than one documented meaning — filter by year 1998 GM sourced
RBO Tire All 245/40r20 SL 95h BW Al3 — Reference
RBP P, WHR, M, WHEEL RR, 22.5 X 8.25, 10 HOLE, 11.25 BC BS, DCT (ALCOA, 88300) this code has more than one documented meaning — filter by year 1998 GM sourced
RBQ P, WHF, M, WHEEL FRT, 20 X 6.5, RIM CR3 (FI-238-CR-1X) this code has more than one documented meaning — filter by year 1998 GM sourced
RBR Wheels, 22 inch 2026 GM sourced
RBS P, WHR, M, WHEEL RR, 20 X 6.5, RIM CR3 (FI-238-CR-1X) this code has more than one documented meaning — filter by year 1998 GM sourced
RBT Front Wheel,20 X 6.5,10 Hole MT 8.75 BC FN Cr3(fi-r27163) — Reference
RBU Wheel 17 X 7.0, J, Aluminum, Design 17 — Reference
RBW Tire All P265/65r18 SL 112t Wol AT — Reference
RBX Tire All P265/65r18 SL 112t BW AT — Reference
RBZ Tire All P255/70r17 SL 110s BW Als — Reference
RC1 Skid plate, front 2026 GM sourced
RC2 Tire Spare T205/45r17 SL 98 P BW Hwy — Reference
RC3 Tires, P265/70R17 all-terrain, blackwall 2019 Reference
RC4 Tire, spare P265/70R17 all-season, blackwall 2019 Reference
RC5 Tires, LT265/70R17C all-terrain, blackwall 2026 GM sourced
RC6 P, FIN, R, FLEET INCENTIVE, DENTPRO FRANCHISE CORPORATION (TRK GML), 10613 — Provisional
RC7 Tire All P275/55r20 SL 111s BW AT — Reference
RC8 P, CONTROL, PLASTIC FUEL TANK CHANGE 1998 GM sourced
RC9 Control Ld9 Running Change this code has more than one documented meaning — filter by year — Reference
RCA Control Rear Cargo, Radio, Redundant — Reference
RCC P, WHF, M, WHEEL FRT, 20 X 7.0, RIM CR3 (FI-240-CR-1X) this code has more than one documented meaning — filter by year 1998 GM sourced
RCD P, WHR, M, WHEEL RR, 20 X 7.0, RIM CR3 (FI-240-CR-1X) this code has more than one documented meaning — filter by year 1998 GM sourced
RCE P, WHF, M, WHEEL FRT, 20 X 7.0, 10 HOLE, 11.25 BC BS 5 DEG (FI 25348) this code has more than one documented meaning — filter by year 1998 GM sourced
RCF P, WHR, M WHEEL RR, 20 X 7.0, 10 HOLE, 11.25 BC BS 5 DEG (FI 25348) this code has more than one documented meaning — filter by year 1998 GM sourced
RCG P, RAIL, PUBX BED, BLACK, 20606 — GM sourced
RCM Wheel 20 X 7.5, Aluminum, Ultrabrite — Reference
RCN Wheel 17 X 7.0, J, Aluminum, Design 14 — 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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