← 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 201–300 of 751 codes beginning with K. One meaning shown per code — the best-sourced one we hold. Search above for the rest.
| Code | Meaning | Years | Sourcing |
|---|---|---|---|
| KBP | P, FIN, R, FLEET INCENTIVE, CABLEVISION SYSTEMS CORP (C/F/J/N/W-TRK CKGMLST) this code has more than one documented meaning — filter by year | 1999 | GM sourced |
| KBQ | P, FIN, R, FLEET INCENTIVE, FACTORY MOTOR PARTS CO. (H/N/W-TRK CKGMLST), 20912 | — | Provisional |
| KBR | P, FIN, R, FLEET INCENTIVE, BETTER VENDORS ASSOCIATION (H/J/N/U/W-TRK CKGST), 10921 | — | Provisional |
| KBS | P, FIN, R, FLEET INCENTIVE, AMTRALEASE/AMERIQUEST (C/H/J/K/N/U/W-TRK CKGMLST), 10316 | — | Provisional |
| KBT | P, FIN, R, FLEET INCENTIVE, DEL WEBB CORP. (TRK CKGMLST), 10501 | — | Provisional |
| KBU | P, FIN, R, FLEET INCENTIVE, CERTIFIED FOLDER DISPLAY (TRK CKGML), 10827 | — | Provisional |
| KBV | P, FIN, R, FLEET INCENTIVE, BUNGE CORPORATION (B/C/G/H/U/W-TRK CKST), 20801 | — | Provisional |
| KBW | P, FIN, R, FLEET INCENTIVE, MORROW MEADOWS CORP. (K/W-TRK CKST), 20801 | — | Provisional |
| KBX | P, FIN, R, FLEET INCENTIVE, ENVIRONMENTAL INDUSTRIES, INC. (N/W-TRK CKST), 10214 | — | Provisional |
| KBY | P, FIN, R, FLEET INCENTIVE, 31 W INSULATION (TRK CKST), 10829 | — | Provisional |
| KBZ | P, FIN, R, FLEET INCENTIVE, RUSSEL STOVER CANDIES (H/M/N/U/W-TRK ML) | 1998 | GM sourced |
| KC0 | P, CONTROL, INTERIOR TEMPERATURE, UNOCCUPIED VEHICLE | 1997 | GM sourced |
| KC1 | P, FLO, R, FILTER, OIL, LUBERFINER, 750C this code has more than one documented meaning — filter by year | 1997 | GM sourced |
| KC2 | P, COOLING SYSTEM, GENERATOR | 1994 | GM sourced |
| KC3 | P, RECEPTACLE, ELECTRICAL, ACCESSORY, NOT INSTALLED, 10629 E, 0 | — | Provisional |
| KC4 | Cooling, external engine oil cooler | 2026 | GM sourced |
| KC5 | Power outlet, front auxiliary this code has more than one documented meaning — filter by year | 2026 | GM sourced |
| KC6 | P, PROVISIONS, ELECTRICAL ACCESSORY ACCOMMODATION DEVICE | 1998 | GM sourced |
| KC7 | P, RECEPTACLE, ELECTRICAL, RR SEAT | 1999 | GM sourced |
| KC8 | P, RECEPTACLE, ELECTRICAL, LOAD COMPARTMENT | 1999 | GM sourced |
| KC9 | 120-volt, 3.33-amp, bed mounted power outlet | 2026 | GM sourced |
| KCA | P, FIN, R, FLEET INCENTIVE, COTY (B/H/N/U/W-TRK CKST), 20815 | — | Provisional |
| KCB | P, FIN, R, FLEET INCENTIVE, TANIMURA AND ANTLE (W-TRK CKST), 11218 | — | Provisional |
| KCC | P, FIN, R, FLEET INCENTIVE, HALLIBURTON (H/W-TRK CKGST), 10820 | — | Provisional |
| KCD | P, FIN, R, FLEET INCENTIVE, NORTHERN PIPELINE CONSTRUCTION (J/W-TRK CKGST), 10921 | — | Provisional |
| KCE | P, FIN, R, FLEET INCENTIVE, 4 SOURCE (U/W-TRK G), 10829 | — | Provisional |
| KCF | P, FIN, R, FLEET INCENTIVE, BECKMAN COULTER, INC. (B/U-TRK GML), 20815 | — | Provisional |
| KCG | P, FIN, R, FLEET INCENTIVE, BE & K, INC. (TRK CK), 11114 | — | Provisional |
| KCH | P, FIN, R, FLEET INCENTIVE, GOTHIC LANDSCAPE (N-TRK CK), 11017 this code has more than one documented meaning — filter by year | — | GM sourced |
| KCI | P, FIN, R, FLEET INCENTIVE, MYERS INDUSTRIES, INC. (B/C/H/N/U/W-TRK CKST), 20801 | — | Provisional |
| KCJ | P, FIN, R, FLEET INCENTIVE, WTNH CHANNEL 8 (TRK CKST), 11108 | — | Provisional |
| KCK | P, FIN, R, FLEET INCENTIVE, INDIANA FARM BUREAU (U/W), 10910 | — | Provisional |
| KCL | P, HEATER, DUCT, RR PASS (2ND POSN), 711 E, 0 | — | GM sourced |
| KCM | P, FIN, R, FLEET INCENTIVE, AK STEEL (H/K/W-TRK CKST), 11127 | — | Provisional |
| KCN | P, HEATER, DUCT, RR PASS (3RD POSN), 711 E, 0 | — | GM sourced |
| KCO | P, FIN, R, FLEET INCENTIVE, PEDIATRIC SERVICES OF AMERICA, INC (-TRK GML), 20912 | — | Provisional |
| KCP | P, FIN, R, FLEET INCENTIVE, ADELPHIA COMMUNICATIONS (B/C/E/F/G/H/J/K/M/N/S/T/UW/Y-TRK CKGMLPST), 10827 | — | Provisional |
| KCQ | P, FIN, R, FLEET INCENTIVE, JACK IN THE BOX (N/U/W-TRK CKGMLST), 10910 | — | Provisional |
| KCR | P, FIN, R, FLEET INCENTIVE, HERR FOODS, INC (C/D/N/W-TRK CKGP), 20801 | — | Provisional |
| KCS | P, FIN, R, FLEET INCENTIVE, U-HAUL INTERNATIONAL (TRK CKG) | 1999 | GM sourced |
| KCT | P, FIN, R, FLEET INCENTIVE, ROLLINS, INC (D/H/J/K/N/U/W-TRK CKGMLST), 20617 | — | Provisional |
| KCU | P, FIN, R, FLEET INCENTIVE, TRITEL COMMUNICATIONS, INC. (W-TRK CKMLST), 11002 | — | Provisional |
| KCV | P, FIN, R, FLEET INCENTIVE, ALAMO RENT-A-CAR (C/D/E/F/G/H/J/K/M/N/U/W/Z-TRK CKGMLPST), 20409 | — | Provisional |
| KCW | P, FIN, R, FLEET INCENTIVE, PRINCETON INSURANCE CO. (J/N), 11002 | — | Provisional |
| KCX | P, FIN, R, FLEET INCENTIVE, KINDER MORGAN (H/W-TRK CKGMLST), 10719 | — | Provisional |
| KCY | P, FIN, R, FLEET INCENTIVE, LE COM COMMUNICATION CONTRACTORS (TRK G), 10920 | — | Provisional |
| KCZ | P, FIN, R, FLEET INCENTIVE, HOLIDAY CO. (U/W-TRK CK), 10402 | — | Provisional |
| KD0 | P, FIN, R, FLEET INCENTIVE, KOORSEN PROTECTION SERVICES (TRK CKGML), 10803 | — | Provisional |
| KD1 | P, COOLING SYSTEM, TRANS, OIL | 1985 | GM sourced |
| KD2 | Pump,fuel Injection(stanadyne) | — | Reference |
| KD3 | Pump,fuel Injection(c.a.v.) | — | Reference |
| KD4 | Power outlet, front auxiliary, 12-volt | 2026 | GM sourced |
| KD5 | Heater Seat, Cooling, RR | — | Reference |
| KD6 | Starter 1.2 KW | — | Reference |
| KD7 | Starter Standard | — | Reference |
| KD8 | P, PROVISIONS, VEHICLE, G.P.S. | 1999 | Provisional |
| KD9 | Generator 145 Amp, Dual | — | Reference |
| KDA | P, FIN, R, FLEET INCENTIVE, PEABODY ENERGY CORP. (W-TRK CKGST), 10905 | — | Provisional |
| KDB | P, FIN, R, FLEET INCENTIVE, R&L CARRIERS (W-TRK CKGST), 20118 | — | Provisional |
| KDC | P, FIN, R, FLEET INCENTIVE, BOSE CORPORATION (U), 11010 | — | Provisional |
| KDD | P, FIN, R, FLEET INCENTIVE, UTILICORP (N/U/W-TRK CKGMLST), 11031 | — | Provisional |
| KDE | P, FIN, R, FLEET INCENTIVE, SACHS ELECTRIC (W-TRK CKG), 10910 | — | Provisional |
| KDF | P, FIN, R, FLEET INCENTIVE, EARLE M. JORGENSEN COMPANY (H/W-TRK CK), 20611 | — | Provisional |
| KDG | P, FIN, R, FLEET INCENTIVE, KIRBY CORPORATION (TRK CKGML), 10827 | — | Provisional |
| KDH | P, FIN, R, FLEET INCENTIVE, DEAN WORD COMPANY, LTD. (TRK CKST), 10830 | — | Provisional |
| KDI | P, FIN, R, FLEET INCENTIVE, DE LA RUE CASH SYSTEMS INC. (U/W-TRK CKGMLST), 10820 | — | Provisional |
| KDJ | P, FIN, R, FLEET INCENTIVE, CNF TRANSPORTATION (H/K/U/W-TRK ST), 20128 | — | Provisional |
| KDK | P, FIN, R, FLEET INCENTIVE, PARK WEST LANDSCAPE, INC. (TRK CKST), 10827 | — | Provisional |
| KDL | P, FIN, R, FLEET INCENTIVE, BAUSCH & LOMB (H/N/U/W-TRK MLST), 10608 | — | Provisional |
| KDM | P, FIN, R, FLEET INCENTIVE, GENERAL CASUALTY (N), 10607 | — | Provisional |
| KDN | P, FIN, R, FLEET INCENTIVE, ENTERGY SERVICES, INC. (N/U/W-TRK CKGST), 10910 | — | Provisional |
| KDO | Equipment,interior,air Quality Control | — | Reference |
| KDP | P, FIN, R, FLEET INCENTIVE, SONOCO PRODUCTS CO. (W-TRK CK), 10719 | — | Provisional |
| KDQ | P, FIN, R, FLEET INCENTIVE, USF BESTWAY (W-TRK CK), 20130 | — | Provisional |
| KDR | P, FIN, R, FLEET INCENTIVE, C. LOYD JOHNSON CO, INC (C/H/U/W-TRK CKML), 20812 | — | Provisional |
| KDS | P, FIN, R, FLEET INCENTIVE, UNITE (C/H/J/N/U/W-TRK MLST) | 1998 | GM sourced |
| KDT | P, FIN, R, FLEET INCENTIVE, BAY ALARM (TRK CKST), 10111 | — | Provisional |
| KDU | P, FIN, R, FLEET INCENTIVE, HERZOG CONTRACTING GROUP (U-TRK CKGST), 11105 | — | Provisional |
| KDV | P, FIN, R, FLEET INCENTIVE, UTILIQUEST (TRK ST) | 1999 | GM sourced |
| KDW | P, FIN, R, FLEET INCENTIVE, FISHEL CO (TRK CKGMLST), 10807 | — | Provisional |
| KDX | P, CONVERSION, "KODIAK", 1208 | — | GM sourced |
| KDY | P, PROVISIONS, PASSENGER AIRBAG, 112 E, 8 | — | Provisional |
| KDZ | P, PROVISIONS, REAR AIR CONDITIONING, 112 E, 8 | — | GM sourced |
| KE0 | P, KNO, R, KNOB, TRANS CONT LEVER, MATT CHROME, 11108 E, 0 | — | GM sourced |
| KE1 | P, EQC, R, EQUIPMENT ADDITIONAL, CHILE this code has more than one documented meaning — filter by year | 1996 | GM sourced |
| KE2 | P, EQC, R, EQUIPMENT ADDITIONAL, PARAGUAY | 1996 | GM sourced |
| KE3 | P, KNO, R, KNOB, TRANS CONT LEVER, CHROME, 20621 E, 0 | — | GM sourced |
| KE4 | Knob Trans Cont Lever, Plastic | — | Reference |
| KE7 | P, EQUIPMENT, ELECT COMPT SUPPRESSION | 1999 | Provisional |
| KEA | P, FIN, R, FLEET INCENTIVE, SOCIAL VOCATIONAL SERVICES (TRK GML), 20619 | — | Provisional |
| KEB | P, FIN, R, FLEET INCENTIVE, WEATHERFORD ENTERRA (C/H/K/W-TRK CKST), 216 | — | Provisional |
| KEC | P, FIN, R, FLEET INCENTIVE, STS INC. (TRK ST), 10830 | — | Provisional |
| KED | P, FIN, R, FLEET INCENTIVE, AG. PROVISION, LLC (C/H/W-TRK CKGMLST), 21001 | — | Provisional |
| KEE | P, FIN, R, FLEET INCENTIVE, ADVANCE AUTO PARTS (H/U/W-TRK GMLST), 703 | — | Provisional |
| KEF | P, FIN, R, FLEET INCENTIVE, TYCO/ADT SECURITY SERVICES (H/N/S/U/W-TRK GMLST), 21101 | — | GM sourced |
| KEG | P, FIN, R, FLEET INCENTIVE, VARIETY TRANSPORTATION DBA: JITNEY 1 (U/W), 20211 | — | Provisional |
| KEH | Knob Trans Cont Lever, Uplevel | — | Reference |
| KEI | Equipment Intr, Air Freshener | — | Reference |
| KEJ | P, FIN, R, FLEET INCENTIVE, MICROBAC LABORATORIES (U/W), 11114 | — | Provisional |
| KEK | P, FIN, R, FLEET INCENTIVE, MEDLINE INDUSTRIES, INC (W) | 1999 | GM sourced |
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.