← All owner tools · Decode your own SPID label with the GM RPO decoder
| Code | Meaning | Years | Sourcing |
|---|---|---|---|
| 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 101–200 of 843 codes beginning with F. One meaning shown per code — the best-sourced one we hold. Search above for the rest.
| Code | Meaning | Years | Sourcing |
|---|---|---|---|
| F34 | P, FIN, R FLEET INCENTIVE, FANUC AMERICA CORPORATION (C/W), 20924 | — | Provisional |
| F36 | Axle,front,2.19 Ratio | — | Reference |
| F37 | P, SSP, M SUSPENSION SYSTEM, RR, AIR | 1998 | Provisional |
| F38 | Chassis Rear, Air, Increased Ride | — | Reference |
| F39 | P, SPF, M SUSPENSION FRONT, 2,650 KG, TAPERED LEAF this code has more than one documented meaning — filter by year | 1998 | GM sourced |
| F3A | P, FIN, R FLEET INCENTIVE, HEIDELBERG USA, INC. (C/D/G/H/J/K/N/U/W-, TRK CKGMLST), 20617 | — | Provisional |
| F3B | P, FIN, R FLEET INCENTIVE, BECTON-DICKINSON CO (H/N/U/W TRK-CKGMLPST) | 1999 | GM sourced |
| F3C | P, FIN, R FLEET INCENTIVE, UNITED INDUSTRIAL PIPING (TRK CK), 11026 | — | Provisional |
| F3D | P, FIN, R FLEET INCENTIVE, WARREN EQUIPMENT (W-TRK CKST), 21101 | — | Provisional |
| F3E | P, FIN, R FLEET INCENTIVE, LEZZER CASH AND CARRY OF CURWENSVILLE, INC., (TRK CKST), 11109 | — | Provisional |
| F3F | P, FIN, R FLEET INCENTIVE, GRAYBAR ELECTRIC CO (N/U/W-TRK CKGML), 1101 | — | Provisional |
| F3G | P, FIN, R FLEET INCENTIVE, UTICA NATIONAL INSURANCE GROUP (N/U/W), 10302 | — | Provisional |
| F3H | P, FIN, R FLEET INCENTIVE, PAN AMERICAN MEDICAL CENTERS, INC. (TRK GML), 11109 | — | GM sourced |
| F3I | P, FIN, R FLEET INCENTIVE, ASSOCIATED WHOLESALE GROCER (C/H/N/W-TRK CK), 10910 | — | Provisional |
| F3J | P, FIN, R FLEET INCENTIVE, PRIME SALES & LEASING (DBA AUTOSAVE CAR RENTALS) (B/D/H/J/N/S/U/W-TRK CKGMLST), 20912 | — | Provisional |
| F3K | P, FIN, R FLEET INCENTIVE, ALLSTATE INSURANCE CO (B/C/G/H/K/U/W-TRK CKST), 10815 | — | Provisional |
| F3L | P, FIN, R FLEET INCENTIVE, TENNECO (H/N/U/W/TRK-CKGMLST) this code has more than one documented meaning — filter by year | 1999 | GM sourced |
| F3M | P, FIN, R FLEET INCENTIVE, LOCTITE CORPORATION (C/H/N/U/W-TRK ML), 10111 | — | Provisional |
| F3N | P, FIN, R FLEET INCENTIVE, FIREMANS FUND INS (C/H/N/W-TRK CKST), 20801 | — | Provisional |
| F3O | P, FIN, R FLEET INCENTIVE, TAIHEIYEO USA (B/C/H/N/U/V/W-TRK CKGMLST), 20926 | — | Provisional |
| F3P | P, FIN, R FLEET INCENTIVE, PERKIN-ELMER (U/W) | 1999 | GM sourced |
| F3Q | P, FIN, R FLEET INCENTIVE, EVERGREEN MARKETING GROUP (G/H/J/K/N/U/W-TRK CKGMLST), 11030 | — | Provisional |
| F3R | P, FIN, R FLEET INCENTIVE, GEORGIA-PACIFIC CORP. (C/G/H/N/U/W-TRK CKMLST), 20801 | — | Provisional |
| F3S | P, FIN, R FLEET INCENTIVE, SERVICE CORP INTERNATIONAL (C/H/J/K/U/W, -TRK CKGMLST) | 1999 | GM sourced |
| F3T | P, FIN, R FLEET INCENTIVE, T.A. LOVING CO. (TRK CKST), 10516 | — | Provisional |
| F3U | P, FIN, R FLEET INCENTIVE, HORMEL, INC (B/C/G/H/J/N/U/W-TRK CKGST), 20429 | — | Provisional |
| F3V | P, FIN, R FLEET INCENTIVE, PURE RESOURCE (W-TRK CKST), 10611 | — | Provisional |
| F3W | P, FIN, R FLEET INCENTIVE, SWEETHEART CUP CO, INC (H/N/U/W-TRK MLST), 10904 | — | GM sourced |
| F3X | P, FIN, R FLEET INCENTIVE, HONEYWELL, INC (C/F/H/J/K/N/S/U/W-TRK-CKGMST), 20611 | — | Provisional |
| F3Y | P, FIN, R FLEET INCENTIVE, BERG, INC. (W-TRK CKGMLST), 20312 | — | Provisional |
| F3Z | P, FIN, R FLEET INCENTIVE, GENUITY (B-TRK CKMLST), 20422 | — | Provisional |
| F40 | P, SSP, M SUSPENSION SYSTEM, FRT, RR, HD, VAR 1 this code has more than one documented meaning — filter by year | 1998 | GM sourced |
| F41 | P, SSP, M SUSPENSION SYSTEM, FRT, RR, FIRM RIDE, HANDLING this code has more than one documented meaning — filter by year | 1998 | GM sourced |
| F42 | P, SSP, M SUSPENSION SYSTEM, FRT, HD this code has more than one documented meaning — filter by year | 1984 | GM sourced |
| F43 | P, FAX, M AXLE FRONT, 9,000 LB this code has more than one documented meaning — filter by year | 1997 | GM sourced |
| F44 | heavy-duty chassis | 1990 | GM sourced |
| F45 | P, CHASSIS, CONTINUOUSLY VARIABLE REAL TIME DAMPING | 1993 | GM sourced |
| F46 | P, CHASSIS, ALL WHEEL DRIVE (AWD) this code has more than one documented meaning — filter by year | 1997 | GM sourced |
| F47 | Suspension, Air Ride Adaptive this code has more than one documented meaning — filter by year | 2026 | GM sourced |
| F48 | P, CHASSIS, MANUAL SELECT DAMPING this code has more than one documented meaning — filter by year | 1995 | GM sourced |
| F49 | P, FIN, R FLEET INCENTIVE, PARAMOUNT PICTURES (B/C/D/F/G/K/N/U/W/Y-TRK CKGML ST), 20801 | — | Provisional |
| F4A | P, FIN, R FLEET INCENTIVE, ILLINOIS TOOLS WORKS, INC. (B/H/N/U/W-TRK CKGMLST), 10724 | — | Provisional |
| F4B | P, FIN, R FLEET INCENTIVE, GIUMARRA VINEYARDS (TRK CKST), 20313 | — | Provisional |
| F4C | P, FIN, R FLEET INCENTIVE, AKZO NOBEL, INC. (B/G/H/N/U/W-TRK CKGMLST), 10621 | — | Provisional |
| F4D | P, FIN, R FLEET INCENTIVE, NATIONAL BURGLAR AND FIRE ALARM ASSOC (H/J/K/N/U/W-TRK CKGML), 10921 | — | Provisional |
| F4E | P, FIN, R, FLEET INCENTIVE, VOLT TELECOM GROUP (TRK CKMLST), 20110 | — | Provisional |
| F4F | P, FIN, R, FLEET INCENTIVE, SUIZA FOODS (H/U/W-TRK CK), 10608 | — | Provisional |
| F4G | P, FIN, R, FLEET INCENTIVE, WESTFIELD COMPANIES/OHIO FARMERS INS (B/C/D/F/G/H J/K/N/U/W-TRK CKGMLST), 20801 | — | Provisional |
| F4H | P, FIN, R, FLEET INCENTIVE, MCI WORLDCOM (-TRK CKGMST), 10620 this code has more than one documented meaning — filter by year | — | GM sourced |
| F4I | P, FIN, R, FLEET INCENTIVE, YKK CORPORATION OF AMERICA (B/C/G/H/K/N/U/W, -TRK CKST), 11128 | — | Provisional |
| F4J | P, FIN, R, FLEET INCENTIVE, CITIZENS COMMUNICATIONS (N-TRK CKGMLST), 20313 | — | Provisional |
| F4K | P, FIN, R, FLEET INCENTIVE, CLEVELAND BROTHERS (H/W-TRK CKGST), 20430 | — | Provisional |
| F4L | P, FIN, R, FLEET INCENTIVE, COOPER TIRE & RUBBER (B/C/H/U/W -TRK CKST), 21009 | — | Provisional |
| F4M | P, FIN, R, FLEET INCENTIVE, RITCHIE CORPORATION (W-TRK CKST), 10911 | — | Provisional |
| F4N | P, FIN, R, FLEET INCENTIVE, GUNTON CORPORATION (-TRK CKGST), 10620 | — | Provisional |
| F4P | P, FIN, R, FLEET INCENTIVE, JONES-HAMILTON, CO (W -TRK CK), 10620 | — | Provisional |
| F4Q | P, FIN, R, FLEET INCENTIVE, NG GILBERT CORP./TOWNSEND TREE (H-TRK CKGST), 20214 | — | Provisional |
| F4R | P, FIN, R, FLEET INCENTIVE, SIEMENS CORP (U/W-TRK CKGMLST), 20926 | — | Provisional |
| F4S | P, FIN, R, FLEET INCENTIVE, US FREIGHTWAYS (W) this code has more than one documented meaning — filter by year | 1998 | GM sourced |
| F4T | P, FIN, R, FLEET INCENTIVE, NETSWORK, INC (-TRK CKML), 10620 | — | Provisional |
| F4U | P, FIN, R, FLEET INCENTIVE, TELE ATLAS N.A., INC (N), 10620 | — | Provisional |
| F4V | P, FIN, R, FLEET INCENTIVE, AON SERVICE CORP. (B/C/G/H/K/U/W-TRK GMLST), 20305 | — | Provisional |
| F4W | P, FIN, R, FLEET INCENTIVE, TERADYNE (N/W), 10620 | — | Provisional |
| F4X | P, FIN, R, FLEET INCENTIVE, HILTI CORP (C/H/J/U/W/TRK-CKGMLST), 10827 | — | Provisional |
| F4Y | P, FIN, R, FLEET INCENTIVE, LANCE, INC (C/H/K/U/W-TRK CKGPST), 11023 | — | Provisional |
| F4Z | P, FIN, R, FLEET INCENTIVE, DUKE UNIVERSITY (J/U/W-TRK CKG), 10921 | — | Provisional |
| F50 | Shock Absorbers FRT & Rr, Hd, Color | — | Reference |
| F51 | heavy-duty front and rear shock absorbers | 1990 | GM sourced |
| F52 | Chassis Sport, Modified | — | Reference |
| F54 | Axle,front,f120(w/hyd Brks) | — | Reference |
| F55 | P, CHASSIS, CONTINOUSLY VARIABLE REAL TIME DAMPING, MAGNETO RHEOLOGICAL, 523 E, 4 | — | GM sourced |
| F56 | P, CHASSIS, CONTINOUSLY VARIABLE REAL TIME DAMPING, HIGH PERFORMANCE, 21025 E, 0 | — | Provisional |
| F57 | Axle,front,3.15 Ratio | — | Reference |
| F58 | P, STA, R, STABILIZER SHAFT FRT, HD | 1991 | GM sourced |
| F59 | P, STA, R, STABILIZER SHAFT FRT | 1991 | GM sourced |
| F5A | P, FIN, R, FLEET INCENTIVE, LANCE CAMPER MANUFACTURING CORPORATION (TRK CK), 20313 | — | Provisional |
| F5B | P, FIN, R, FLEET INCENTIVE, ROTECH MEDICAL (N/U/W-TRK JCKGMLST), 10815 | — | Provisional |
| F5C | P, FIN, R, FLEET INCENTIVE, AUSTIN INDUTRIES (H/W-TRK CKST), 10911 | — | Provisional |
| F5D | P, FIN, R, FLEET INCENTIVE, PROGRESSIVE INSURANCE (B/C/E/F/G/H/J/K/L/M/N/S/T/UW//Y-TRK CKGMLPST), 20801 | — | Provisional |
| F5E | P, FIN, R, FLEET INCENTIVE, ST PAUL COMPANIES (N/W-TRK CKST), 607 | — | Provisional |
| F5F | P, FIN, R, FLEET INCENTIVE, AVENTIS PHARMACEUTICALS (H/W), 10911 | — | Provisional |
| F5G | P, FIN, R, FLEET INCENTIVE, TRANSCORE (N/W -TRK CKGMLST), 21009 | — | Provisional |
| F5H | P, FIN, R, FLEET INCENTIVE, SCOPE (ST), 10724 | — | Provisional |
| F5I | P, FIN, R, FLEET INCENTIVE, PROMETHEUS, INC. (H/W), 10308 | — | Provisional |
| F5J | P, FIN, R, FLEET INCENTIVE, UNITRIN (N/U/W-TRK ST), 907 | — | Provisional |
| F5K | P, FIN, R, FLEET INCENTIVE, MTS DIVISION, AMERICAN TOWER CORP. (U/W-TRK CKGST), 10111 | — | Provisional |
| F5L | P, FIN, R, FLEET INCENTIVE, CHEVRON, USA (C/G/H/J/K/M/N/S/T/U/W-TRK CKGMLST), 317 | — | Provisional |
| F5M | P, FIN, R, FLEET INCENTIVE, AGGREKO RENTAL (K/N/W-TRK CKGST), 10601 | — | Provisional |
| F5N | P, FIN, R, FLEET INCENTIVE, AMES CONSTRUCTION (TRK CKST), 10123 | — | Provisional |
| F5P | P, FIN, R, FLEET INCENTIVE, SERVICE MASTER CONSUMER SERVICE/TERMINEX (C/H/N/W-TRK CKGMLST) | 1999 | GM sourced |
| F5Q | P, FIN, R, FLEET INCENTIVE, FIRST PERMIAN, L.L.C. (TRK CKST), 10613 | — | Provisional |
| F5R | P, FIN, R, FLEET INCENTIVE, ALCOA (H/N/U/W-TRK CKGST), 10814 | — | Provisional |
| F5S | P, FIN, R, FLEET INCENTIVE, WATERS VAN & CAR RENTALS, INC. (W-TRK CKGST), 20206 | — | Provisional |
| F5T | P, FIN, R, FLEET INCENTIVE, TYSON FOODS, INC (W-TRK CKGST), 11004 | — | Provisional |
| F5U | P, FIN, R, FLEET INCENTIVE, MEDPOINTE, INC. (H/U/W), 11029 | — | Provisional |
| F5V | P, FIN, R, FLEET INCENTIVE, COMCAST CORPORATION (H/N/U/W-TRK CKGMLST) | 1999 | GM sourced |
| F5W | P, FIN, R, FLEET INCENTIVE, TIME WARNER TELECOM (TRK CKGMLST), 10205 | — | Provisional |
| F5X | P, FIN, R, FLEET INCENTIVE, WESTERN FARM SERVICE, INC (H/N/U/W-TRK CKGMLST), 10807 | — | Provisional |
| F5Y | P, FIN, R, FLEET INCENTIVE, YELLOW FREIGHT SYSTEM, INC (W) | 1999 | GM sourced |
| F5Z | P, FIN, R, FLEET INCENTIVE, ABBOTT LABORATORIES PUERTO RICO (H/W), 10911 | — | 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.