GM RPO Code Database

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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 201–300 of 922 codes beginning with U. One meaning shown per code — the best-sourced one we hold. Search above for the rest.

CodeMeaningYearsSourcing
U6L P, CKD OPTION, #12 CHINA 1996 Provisional
U6M P, CKD OPTION, #13 CHINA 1996 Provisional
U6N P, CKD OPTION, #14 CHINA 1996 Provisional
U6P P, CKD OPTION, #16 CANEXPO CKD VE-24 1996 Provisional
U6Q P, CKD OPTION, #17 CANEXPO CKD VE-25 1996 Provisional
U6R P, CKD OPTION, #18 VENEZUELA, 223 P, 7, 7, A — Provisional
U6S P, CKD OPTION, #19 CHINA 1996 Provisional
U6T P, CKD OPTION, #20 CHINA 1996 Provisional
U6U P, CKD OPTION, #21 CHINA 1996 Provisional
U6V P, CKD OPTION, #22 NIGERIA, 10510 P, 7, 7, A — Provisional
U6W P, CKD OPTION, #23 CHINA 1996 Provisional
U6X P, CKD OPTION, #24 COLOMBIA 1996 Provisional
U6Y P, CKD OPTION, #25 CHINA 1996 Provisional
U6Z P, CKD OPTION, #26 CHINA 1996 Provisional
U70 P, RDO, M, RADIO, PROVISIONS, TWO WAY 1997 GM sourced
U71 P, ANT, M, ANTENNA, ROOF, RADIO this code has more than one documented meaning — filter by year 1986 GM sourced
U72 P, ANT, M, ANTENNA, POWER, FRT, RADIO this code has more than one documented meaning — filter by year 1986 GM sourced
U73 P, ANT, M, ANTENNA, FIXED, RADIO this code has more than one documented meaning — filter by year 1986 GM sourced
U74 P, ANT, M, ANTENNA, RADIO - DELETE 1998 GM sourced
U75 P, ANT, M, ANTENNA, POWER, RADIO this code has more than one documented meaning — filter by year 1986 GM sourced
U76 P, ANT, M, ANTENNA, WINDSHIELD, RADIO this code has more than one documented meaning — filter by year 1986 GM sourced
U77 P, ANT, M, ANTENNA, RR WINDOW, RADIO 1986 GM sourced
U78 P, SPR, M, SPEAKER SYSTEM, 8, QUAD FRT DR MTD, QUAD RR DR MTD this code has more than one documented meaning — filter by year 1996 GM sourced
U79 P, SPR, M, SPEAKER SYSTEM, 4, DUAL FRT COAX, DUAL EXT RGE PKG SHELF this code has more than one documented meaning — filter by year 1983 GM sourced
U7A P, CKD OPTION, #27 VENEZUELA 1999 Provisional
U7B P, CKD OPTION, #28 VENEZUELA 1999 Provisional
U7C P, CKD OPTION, #29 VENEZUELA, 503 P, 7 7, A — Provisional
U7D P, CKD OPTION, #30 COLOMBIA 1998 Provisional
U7E P, CKD OPTION, #31 COLOMBIA 1998 Provisional
U7F P, CKD OPTION, #32 VENEZUELA 1998 Provisional
U7G P, CKD OPTION, #33 COLOMBIA 1999 Provisional
U7H P, CKD OPTION, #34 COLOMBIA 1999 Provisional
U7J P, CKD OPTION, #36 CHILE 1998 Provisional
U7K P, CKD OPTION, #37 CHILE 1998 Provisional
U7L P, CKD OPTION, #38 CANEXPO CKD VE-16 1998 Provisional
U7M P, CKD OPTION, #39 COLOMBIA 1999 Provisional
U7N P, CKD OPTION, #40 COLOMBIA 1999 Provisional
U7P P, CKD OPTION, #42 VENEZUELA, 1116 P, 7 7, A — Provisional
U7Q P, CKD OPTION, #43 CANEXPO CKD VE-02 1996 Provisional
U7R P, CKD OPTION, #44 CANEXPO CKD VE-03 1996 Provisional
U7S P, CKD OPTION, #45 VENEZUELA 1998 Provisional
U7T P, CKD OPTION, #46 VENEZUELA, 1116 P, 7 7, A — Provisional
U7U P, CKD OPTION, #47 CANEXPO CKD VE-04 1996 Provisional
U7V P, CKD OPTION, #48 CANEXPO CKD VE-05 1996 Provisional
U7W P, CKD OPTION, #49 CANEXPO CKD VE-13 1998 Provisional
U7X P, CKD OPTION, #50 CANEXPO CKD VE-14 1998 Provisional
U7Y P, CKD OPTION, #51 CANEXPO CKD VE-20 1998 Provisional
U7Z P, CKD OPTION, IPC-MASTER SPEC DESIGNATOR #26 1998 Provisional
U80 P, SPR, M, SPEAKER SYSTEM, 8, DUAL F/D MIR PATCH TWT, DUAL F/D WOOFER, DUAL R/D MTD, DUAL SUBWOOF PKG SHLF, AMP TRUNK, BOSE this code has more than one documented meaning — filter by year 1997 GM sourced
U81 P, SPR, M, SPEAKER SYSTEM, RR, DUAL this code has more than one documented meaning — filter by year 1984 GM sourced
U82 P, SPR, M, SPEAKER SYSTEM, 2, DELUXE this code has more than one documented meaning — filter by year 1999 GM sourced
U83 P, SPR, M, SPEAKER SYSTEM, 6, DUAL I/P MTD, DUAL FRT DR MTD, DUAL RR DR MTD 1998 GM sourced
U84 P, ANT, M, ANTENNA, BODY SIDE WINDOW, RADIO this code has more than one documented meaning — filter by year 1997 GM sourced
U85 P, SPR, M, SPEAKER SYSTEM, 8, QUAD FRT DR MTD, SHELF QUAD, AMPLIFIER 1986 GM sourced
U86 P, TLR, R, WIRING HARNESS, 7 WIRE, FULL TRAILER this code has more than one documented meaning — filter by year 1997 GM sourced
U87 P, SPR, M, SPEAKER SYSTEM, 8, CUSTOM 1998 GM sourced
U88 Speaker System 6, Dual FRT Dash, Dual RR Side Door, Dual RR Headliner this code has more than one documented meaning — filter by year — Reference
U89 P, TLR, R, WIRING HARNESS, CAR TRAILER this code has more than one documented meaning — filter by year 1983 GM sourced
U8A P, CKD OPTION, #53 VENEZUELA 1996 Provisional
U8B P, CKD OPTION, #54 VENEZUELA 1996 Provisional
U8C P, CKD OPTION, #55 COLOMBIA 1997 Provisional
U8D P, CKD OPTION, #56 VENEZUELA 1997 Provisional
U8E P, CKD OPTION, #57 VENEZUELA 1997 Provisional
U8F P, CKD OPTION, #58 VENEZUELA 1999 Provisional
U8G P, CKD OPTION, #59 CHINA, 518 P, 7 7, A — Provisional
U8H P, CKD OPTION, #60 VENEZUELA 1996 Provisional
U8I P, CKD OPTION, #61 CANEXPO CKD CO-26 1998 Provisional
U8J P, CKD OPTION, #62 CANEXPO CKD CO-27 1998 Provisional
U8K P, CKD OPTION, #63 VENEZUELA, 308 P, 7 7, A — Provisional
U8L P, CKD OPTION, #64 VENEZUELA, 308 P, 7 7, A — Provisional
U8M P, CKD OPTION, #65 VENEZUELA, 308 P, 7 7, A — GM sourced
U8N P, CKD OPTION, #66 COLOMBIA 1998 Provisional
U8P P, CKD OPTION, #68 COLOMBIA, 726 P, 7 7, A — Provisional
U8Q P, CKD OPTION, #69 VENEZUELA, 912 P, 7 7, A — Provisional
U8R P, CKD OPTION, #70 VENEZUELA, 912 P, 7 7, A — Provisional
U8S P, CKD OPTION, #71 VENEZUELA, 10510 P, 7 7, A — Provisional
U8T P, CKD OPTION, #72 VENEZUELA, 10510 P, 7 7, A — Provisional
U8U P, CKD OPTION, #73 CHINA 1999 Provisional
U8V P, CKD OPTION, #74 CHINA 1999 Provisional
U8W P, CKD OPTION, #75 CHINA 1999 Provisional
U8X P, CKD OPTION, #76 VENEZUELA 1999 Provisional
U8Y P, CKD OPTION, #77 AFRICA SUDAN 1998 Provisional
U8Z P, CKD OPTION, #78 AFRICA BOTSWANA 1998 Provisional
U90 Harness,roof Flasher,includes Roof Panel Reinforcement — Reference
U91 P, ANT, M, ANTENNA, SHORT , ROOF, RADIO, 10626 E, 0 — GM sourced
U92 Speakers System,front Dual And Rear Dual — Reference
U93 P, ANT, M, ANTENNA, MANUAL, RETRACTABLE, RADIO this code has more than one documented meaning — filter by year 1998 GM sourced
U94 P, ANT, M, ANTENNA, MANUAL, RETRACTABLE, LOCKING, RADIO this code has more than one documented meaning — filter by year 1995 GM sourced
U95 Audio system feature, 2-speakers this code has more than one documented meaning — filter by year 2026 GM sourced
U96 P, SPR, M, SPEAKER SYSTEM, 6, DUAL FRT DR MTD, DUAL RR DR MTD, DUAL EXT RGE QTR MTD this code has more than one documented meaning — filter by year 1993 GM sourced
U97 P, SPR, M, SPEAKER SYSTEM, 7, DUAL F/D MTD, DUAL SHRD PNL, DUAL RR DR, RR PKGSHELF 1991 GM sourced
U98 Speaker System 8, Dual F/d 2 Tweet & 2 Woof, Dual Extd Rge RR Drs Dual Woof Pkg Shelf — Reference
U99 P, SPR, M, SPEAKER SYSTEM, 9, DUAL F/D 2 TWEET & 2 WOOF, DUAL EXTD RGE RR DRS, DUAL SUBWOOF PKG SHELF, CTR I/P, AMPLIFIER 1993 GM sourced
U9A P, CKD OPTION, #79 VENEZUELA 1998 Provisional
U9B P, CKD OPTION, #80 INDONESIA 1998 Provisional
U9C P, CKD OPTION, #81 INDONESIA 1998 Provisional
U9D P, CKD OPTION, #82 NIGERIA 1998 Provisional
U9E P, CKD OPTION, #83 NIGERIA 1998 Provisional
U9F P, CKD OPTION, #84 ANGOLA 1998 Provisional
U9G P, CKD OPTION, #85 AFRICA 1998 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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