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 601–700 of 843 codes beginning with F. One meaning shown per code — the best-sourced one we hold. Search above for the rest.

CodeMeaningYearsSourcing
FLT P, SPC, R, SALES PROCESSING, OPTION, 10209 P, 1 — Provisional
FLY Trim Door None — Reference
FM0 P, SPF, M, SUSPENSION FRONT, 14,575 LB (6,610 KG), MULITLEAF, 607 this code has more than one documented meaning — filter by year — GM sourced
FM1 P, SPF, M, SUSPENSION FRONT, 18,000 LB (8,165 KG), MULTILEAF, 607 — GM sourced
FM2 P, SPF, M, SUSPENSION FRONT, 3,650 LB, INDEPENDENT-STANDARD HEIGHT this code has more than one documented meaning — filter by year 1998 GM sourced
FM3 P, SPF, M, SUSPENSION FRONT, 10,000 LB (4,536 KG), TAPERED LEAF, 607 — GM sourced
FM4 P, SPF, M, SUSPENSION FRONT, 14,000 LB (6,350 KG), TAPERED LEAF, 607 — GM sourced
FM5 P, FAX, M, AXLE FRONT, 4,400 LB CAPACITY this code has more than one documented meaning — filter by year 1994 GM sourced
FM6 P, FAX, M, AXLE FRONT, 10,000 LB (4,536 KG), 607 — GM sourced
FM7 P, FAX, M, AXLE FRONT, 7,000 LB (3,175 KG), 607 — GM sourced
FM8 P, FAX, M, AXLE FRONT, 8,000 LB (3,639 KG), 607 — GM sourced
FM9 P, RAT, M, RATIO, TRANSAXLE FINAL DRIVE 3.20, 20717 E, 0 — Provisional
FMF Family Code, Covering FRT 1988 GM dated
FMO Trim Door Cloth, Panama — Reference
FMP Trim Door FRT DR - Companion Mat / RR DR - Mini Perf — Reference
FMQ Trim Door Matte Finish — Reference
FMR Family Code, Covering RR 1998 GM dated
FMT Family Code, Covering Color 1988 GM dated
FN0 Spring,front,5000 Kg(11000#),taperleaf — Reference
FN1 P, SPF, M, SUSPENSION FRONT, 13,200 LB, TAPERED LEAF this code has more than one documented meaning — filter by year 1998 GM sourced
FN2 P, SPRING FRONT, AUXILIARY LEAF 1989 GM sourced
FN3 P, FAX, M, AXLE FRONT, 4,000 LB CAPACITY this code has more than one documented meaning — filter by year 1994 GM sourced
FN4 P, FAX, M, AXLE FRONT, 4,300 LB CAPACITY this code has more than one documented meaning — filter by year 1994 GM sourced
FN5 P, FAX, M, AXLE FRONT, 4,500 LB CAPACITY this code has more than one documented meaning — filter by year 1994 GM sourced
FN6 P, FAX, M, AXLE FRONT, 5,000 LB CAPACITY this code has more than one documented meaning — filter by year 1994 GM sourced
FN7 P, FAX, M, AXLE FRONT, 5,300 LB CAPACITY this code has more than one documented meaning — filter by year 1994 GM sourced
FN8 P, FAX, M, AXLE FRONT, 5,500 LB CAPACITY this code has more than one documented meaning — filter by year 1994 GM sourced
FN9 P, FAX, M, AXLE FRONT, 6,000 LB (2,722 KG), 607 — GM sourced
FNE P, EQUIPMENT, H.D. FRAME CROSSMEMBER (TAPERLEAF RR SUSPENSION) 1999 GM sourced
FNF P, FLOOR, POWER TAKE OFF (PTO), FRT, 417 — GM sourced
FNH P, WLB, R, WHEELBASE, 190 INCH 1991 GM sourced
FNK P, WLB, R, WHEELBASE, 238 INCH 1984 GM sourced
FNQ C, WLB, R, WHEELBASE, 179 INCH this code has more than one documented meaning — filter by year 1997 GM sourced
FNT P, FENDERS, - DELETE this code has more than one documented meaning — filter by year 1998 GM sourced
FNU C, WLB, R, WHEELBASE, 210 INCH 1997 GM sourced
FNV P, WLB, R, WHEELBASE, 175 INCH this code has more than one documented meaning — filter by year 1996 GM sourced
FNW P, WLB, R, WHEELBASE, 176 INCH this code has more than one documented meaning — filter by year 1999 GM sourced
FOR Not For — Reference
FP0 P, RAT, M, RATIO, TRANSAXLE FINAL DRIVE 2.55 this code has more than one documented meaning — filter by year 1993 GM sourced
FP1 P, RAT, M, RATIO, TRANSAXLE FINAL DRIVE 2.72 this code has more than one documented meaning — filter by year 1993 GM sourced
FP2 P, RAT, M, RATIO, TRANSAXLE FINAL DRIVE 3.58 1984 GM sourced
FP3 P, RAT, M, RATIO, TRANSAXLE FINAL DRIVE 2.73 1984 GM sourced
FP4 P, RAT, M, RATIO, TRANSAXLE FINAL DRIVE 2.69 this code has more than one documented meaning — filter by year 1993 GM sourced
FP5 P, RAT, M, RATIO, TRANSAXLE FINAL DRIVE-DELETE 1999 GM sourced
FP6 P, RAT, M, RATIO, TRANSAXLE FINAL DRIVE 4.48, 1103 E, 3 — GM sourced
FP7 P, RAT, M, RATIO, TRANSAXLE FINAL DRIVE 3.73 this code has more than one documented meaning — filter by year 1984 GM sourced
FP8 P, RAT, M, RATIO, TRANSAXLE FINAL DRIVE 3.54 1992 GM sourced
FP9 P, RAT, M, RATIO, TRANSAXLE FINAL DRIVE 3.55 1985 GM sourced
FPC C, EQUIPMENT, FRONT GVW RATING (16000#) 1998 GM sourced
FPD P, FIN, R, FLEET INCENTIVE, RAIL AMERICA (W-TRK CKGML), 20912 — Provisional
FPE P, WLB, R, WHEELBASE, 151 INCH this code has more than one documented meaning — filter by year 1984 GM sourced
FPF DPF (diesel particulate filter), manual regeneration 2026 GM sourced
FPG P, FIN, R, FLEET INCENTIVE, PROCTER & GAMBLE (H/U/W-TRK ST), 20508 — Provisional
FPJ P, WLB, R, WHEELBASE, 133 INCH 1994 GM sourced
FPL P, WLB, R, WHEELBASE, 218 INCH this code has more than one documented meaning — filter by year 1993 GM sourced
FPM P, WLB, R, WHEELBASE, 153 INCH 1984 GM sourced
FPN Wheelbase 230 Inch — Reference
FPO C, WLB, R, WHEELBASE, 163 INCH 1997 GM sourced
FPP P, WLB, R, WHEELBASE, 169 INCH this code has more than one documented meaning — filter by year 1999 GM sourced
FPQ P, WLB, R, WHEELBASE, 203 INCH, 612 — Provisional
FPR C, WLB, R, WHEELBASE, 251 INCH 1997 GM sourced
FPS C, WLB, R, WHEELBASE, 271 INCH 1997 GM sourced
FPT P, WLB, R, WHEELBASE, 276 INCH, 20828 — Provisional
FPU P, WLB, R, WHEELBASE, 209 INCH this code has more than one documented meaning — filter by year 1986 GM sourced
FPX C, WLB, R, WHEELBASE, 142 INCH 1998 GM sourced
FPZ P, FIN, R, FLEET INCENTIVE, SALOMON / NORTH AMERICA (TRK CKGML), 21023 — Provisional
FQ1 P, FAX, M, AXLE FRONT, STD RATIO 1984 GM sourced
FQ2 P, RAT, M, RATIO, TRANSAXLE FINAL DRIVE 3.48 1985 GM sourced
FQ3 P, RAT, M, RATIO, TRANSAXLE FINAL DRIVE 2.86 1993 GM sourced
FQ4 P, RAT, M, RATIO, TRANSAXLE FINAL DRIVE 3.57 1986 Provisional
FQ5 P, RAT, M, RATIO, TRANSAXLE FINAL DRIVE 3.68 1986 Provisional
FQ6 P, RAT, M, RATIO, TRANSAXLE FINAL DRIVE 4.12 1987 GM sourced
FQ7 P, RAT, M, RATIO, TRANSAXLE FINAL DRIVE 4.05 1993 GM sourced
FQ8 P, RAT, M, RATIO, TRANSAXLE FINAL DRIVE 2.96 1987 GM sourced
FQ9 P, RAT, M, RATIO, TRANSAXLE FINAL DRIVE 3.21 1988 GM sourced
FQB Wheelbase 254 Inch — Reference
FQD C, WLB, R, WHEELBASE, 198 INCH this code has more than one documented meaning — filter by year 1997 GM sourced
FQE P, WLB, R, WHEELBASE, 195 INCH this code has more than one documented meaning — filter by year 1997 GM sourced
FQF Fleet Incentive Morton Buildings (w-trk Ck) — Reference
FQL C, CCU, M, PRIMARY COLOR, EXTERIOR, UNISOURCE RED, WE106B, 209 — Provisional
FQP Wheelbase 226 IN — Reference
FQR FAMILY CODE, FREQUENCIES RATING, 10406 — Provisional
FQT P, WLB, R, WHEELBASE, 140 INCH this code has more than one documented meaning — filter by year 1993 GM sourced
FQU C, CCL, R, SECONDARY COLOR, EXTERIOR, UNISOURCE RED, WE106B, 209 — Provisional
FQX P, WLB, R, WHEELBASE, 145 INCH this code has more than one documented meaning — filter by year 1991 GM sourced
FQZ P, WLB, R, WHEELBASE, 182 INCH this code has more than one documented meaning — filter by year 1997 GM sourced
FR1 P, SSP, M, SUSPENSION SYSTEM, FRT & RR, HIGH HEIGHT, COUNTRY PKG 1998 GM sourced
FR2 P, RAT, M, RATIO, TRANSAXLE FINAL DRIVE 2.93 1993 GM sourced
FR3 P, RAT, M, RATIO, TRANSAXLE FINAL DRIVE 3.69 1993 GM sourced
FR4 P, RAT, M, RATIO, TRANSAXLE FINAL DRIVE 2.48 1998 GM sourced
FR5 C, FAX, M, AXLE FRONT, 6,250 LB (2,835.7 KG), 20516 — GM sourced
FR6 P, RAT, M, RATIO, TRANSAXLE FINAL DRIVE 3.84 1997 GM sourced
FR7 P, RAT, M, RATIO, TRANSAXLE FINAL DRIVE 3.95 1997 GM sourced
FR8 P, RAT, M, RATIO, TRANSAXLE FINAL DRIVE 4.17 1998 GM sourced
FR9 P, RAT, M, RATIO, TRANSAXLE FINAL DRIVE 3.29 1994 GM sourced
FRA P, RAT, M, RATIO, TRANSAXLE FINAL DRIVE 3.97, 20621 E, 0 — Provisional
FRB Ratio Transaxle Final Drive 3.56 — Reference
FRC Ratio Transaxle Final Drive 3.96 — Reference
FRE Family Code, Frequencies 1995 GM dated
FRH Family Code, Component FRT RH 1988 GM dated

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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