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| 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 301–400 of 975 codes beginning with Q. One meaning shown per code — the best-sourced one we hold. Search above for the rest.
| Code | Meaning | Years | Sourcing |
|---|---|---|---|
| QCF | Tire All P205/75r15/n Rwl R/pe ST TL Als this code has more than one documented meaning — filter by year | — | Reference |
| QCG | Tire All | — | Reference |
| QCH | P, TIR, M, TIRE ALL, P235/55R17-98H BW R/PE ST TL AL3 this code has more than one documented meaning — filter by year | 1997 | GM sourced |
| QCI | P, TIR, M, TIRE ALL, 185/70R14-88H BL R/ST TL HWY | 1997 | Provisional |
| QCJ | P, TIR, M, TIRE ALL, P255/70R16 WOL R/PE ST TL ALS this code has more than one documented meaning — filter by year | 1996 | GM sourced |
| QCK | Tire All 225/60r16-102h BW TL Hwy | — | Reference |
| QCL | Tire Spare T125/70r17 SL 98m BW Spr | — | Reference |
| QCM | P, TIR, M, TIRE ALL, P215/75R15-100S WOL R/PE ST TL ALS this code has more than one documented meaning — filter by year | 1997 | GM sourced |
| QCN | Tire All P275/60r15 BW R/pe ST TL Al3 107h | — | Reference |
| QCO | P, TIR, M, TIRE ALL, 165/80R13-83T BW R/ST TL HWY | 1998 | Provisional |
| QCP | P, TIR, M, TIRE ALL, P255/70R16-109H BW R/PE ST TL ALS this code has more than one documented meaning — filter by year | 1997 | GM sourced |
| QCR | Tire All 205/65r15 BW Ny/st TL Als | — | Reference |
| QCS | Tire Spare T145/70r17 SL 106m BW Spr | — | Reference |
| QCT | Tire All 205/55r16 BW Ny/st TL Als | — | Reference |
| QCU | P, TIR, M, TIRE ALL, P215/75R15/N BL R/PE ST TL ALS this code has more than one documented meaning — filter by year | 1989 | GM sourced |
| QCV | Tire All Lt225/75r17/e BW TL Oor 113q this code has more than one documented meaning — filter by year | — | Reference |
| QCW | Tire All P215/75r15/n R/wl R/pe ST TL Als this code has more than one documented meaning — filter by year | — | Reference |
| QCX | Tire All 195/60r15 BW Ny/st TL Als | — | Reference |
| QCZ | Tire All 245/40r19-94w R/st TL Hwy | — | Reference |
| QD0 | Wheel 18 X 8.5, J, FRT & 18 X 9.5, J, Rr, Aluminum, Design 1 | — | Reference |
| QD1 | P, WHL, M, WHEEL, 16 X 6.5, ALUMINUM, STYLED | 1996 | GM sourced |
| QD2 | P, WHL, M, WHEEL, 16 X 6.5, ALUMINUM, 5 SPOKES this code has more than one documented meaning — filter by year | 1999 | GM sourced |
| QD3 | P, WHS, R, WHEEL SPARE, 16 X 6.0 | 1993 | GM sourced |
| QD4 | P, WHL, M, WHEEL, 17 X 8.5, FRT & 18 X 9.5 RR, ALUM, STYLED | 1996 | GM sourced |
| QD5 | P, WHS, R, WHEEL SPARE, COMPACT, ALUMINUM | 1994 | GM sourced |
| QD6 | P, WHS, R, WHEEL SPARE, COMPACT, STEEL | 1994 | GM sourced |
| QD7 | P, WHL, M, WHEEL, 15 X 6, ALUMINUM, 9 FLAT SPOKES (LMA), 609 E, 5 | — | Provisional |
| QD8 | P, WHL, M, WHEEL, 15 X 6, ALUMINUM, 5 FLAT SPOKES (LMA) | 1997 | Provisional |
| QD9 | P, WHL, M, WHEEL, 15 X 6, ALUMINUM, 6 FLAT SPOKES (LMA) | 1997 | Provisional |
| QDA | P, TIR, M, TIRE ALL, P235/60R16-99S BW R/PE ST TL ALS this code has more than one documented meaning — filter by year | 1994 | GM sourced |
| QDB | P, TIR, M, TIRE ALL, P215/55R16-91S BW R/PE ST TL AL2 this code has more than one documented meaning — filter by year | 1999 | GM sourced |
| QDC | P, TIR, M, TIRE ALL, P235/60ZR16 BW R/PE ST TL AL3 this code has more than one documented meaning — filter by year | 1994 | GM sourced |
| QDD | P, TIR, M, TIRE ALL, 165/70R14-81T BW R/ST TL HWY | 1998 | Provisional |
| QDE | P, TIR, M, TIRE ALL, 175/65R14-82H BW R/ST TL ALS | 1997 | Provisional |
| QDF | Tires, 265/65R18SL all-season, blackwall | 2026 | GM sourced |
| QDG | P, TIR, M, TIRE ALL, P235/50R18-97W BW R/PE ST TL AL3, 20305 | — | GM sourced |
| QDH | P, TIR, M, TIRE ALL, 165/60R14-75T BW R/ST TL HWY | 1999 | Provisional |
| QDI | P, TIR, M, TIRE ALL, 165R13-82T BW R/ST TL HWY (OVERSEAS) | 1997 | GM sourced |
| QDJ | P, TIR, M, TIRE ALL, P215/55R16-91H BW R/PE ST TL AL3 this code has more than one documented meaning — filter by year | 1999 | GM sourced |
| QDL | P, TIR, M, TIRE ALL, 155/80R13-79T BW R/ST TL | 1997 | Provisional |
| QDM | P, TIR, M, TIRE ALL, 205/65R15-94W BW R/ST TL HWY | 1997 | Provisional |
| QDN | P, TIR, M, TIRE ALL, 155/65R14-75T BW R/ST TL HWY | 1999 | Provisional |
| QDO | P, TIR, M, TIRE ALL, 235/60ZR16-100W R/PE ST TL HW4 this code has more than one documented meaning — filter by year | 1997 | GM sourced |
| QDP | Tire All P235/55r18-99h BW TL Al3 | — | Reference |
| QDQ | P, TIR, M, TIRE ALL, 225/45R17-94W BW R/ST TL HWY, 20604 E, 0 | — | GM sourced |
| QDR | Tire All 225/45r18-91v BW R/st TL Hw4 | — | Reference |
| QDS | Tires, 265/65R18SL all-terrain, white outlined letter | 2026 | GM sourced |
| QDT | P, TIR, M, TIRE ALL, P225/65R17-100S BW PE/ST TL ALS, 612 this code has more than one documented meaning — filter by year | — | GM sourced |
| QDV | TIRE - 265/70R17 all-terrain, blackwall | 2026 | GM sourced |
| QDW | Tire All 195/70r14 BW Ny/st TL Als | — | Reference |
| QDX | Tire All 155/80r13 BW Ny/st TL Als | — | Reference |
| QDY | Tire All 155/65r13 BW Ny/st TL Als | — | Reference |
| QDZ | Tire All 145/70r13 BW Ny/st TL Als | — | Reference |
| QE0 | P, WHL, M, WHEEL, 16 X 6, ALUMINUM, 5 SPOKES, SPORT | 1999 | Provisional |
| QE1 | P, WHL, M, WHEEL, 17 X 9.5 FRT & 18 X 10.5 RR, ALUMINUM, STYLED this code has more than one documented meaning — filter by year | 1998 | GM sourced |
| QE2 | P, WHL, M, WHEEL, 17 X 8, ALUMINUM, CHROME, 20410 | — | Provisional |
| QE3 | P, WHL, M, WHEEL, 16 X 6, ALUMINUM, 5 TRAPEZOIDAL HOLES, SPORT | 1999 | Provisional |
| QE4 | P, WHS, R, WHEEL SPARE, 16 X 6.5, ALUMINUM this code has more than one documented meaning — filter by year | 1996 | GM sourced |
| QE5 | C, ODOMETER, RR AXLE HUB (SEO) this code has more than one documented meaning — filter by year | 1994 | GM sourced |
| QE6 | P, WHL, M, WHEEL, 15 X 6, ALUMINUM, 5 SPOKES | 1997 | GM sourced |
| QE7 | P, WHL, M, WHEEL, 15 X 6, ALUMINUM, 7 FLAT SPOKES | 1996 | Provisional |
| QE8 | P, WHL, M, WHEEL, 15 X 6, ALUMINUM, 6 FLAT SPOKES | 1996 | GM sourced |
| QE9 | P, WHL, M, WHEEL, 15 X 6, ALUMINUM, 15 SPOKES | 1996 | GM sourced |
| QEA | P, TIR, M, TIRE ALL, P215/60R16-94T BW R/PE ST TL AL2 this code has more than one documented meaning — filter by year | 1997 | GM sourced |
| QEB | P, TIR, M, TIRE ALL, P235/75R15/N WOL R/PE ST TL OOR this code has more than one documented meaning — filter by year | 1988 | GM sourced |
| QEC | P, TIR, M, TIRE ALL, LT215/85R16/E BW R/PE ST TL HWY this code has more than one documented meaning — filter by year | 1999 | GM sourced |
| QED | P, TIR, M, TIRE ALL, 195/60R15-88H BW R/ST TL | 1997 | GM sourced |
| QEE | Tire All P205/65r15 BL R/pe ST TL Als 92s | — | Reference |
| QEF | P, TIR, M, TIRE ALL, LT215/85R16/E BW R/PE ST TL OOR | 1999 | GM sourced |
| QEG | P, TIR, M, TIRE ALL, P205/75R15-97S BW R/PE ST TL ALS (50 PSI) this code has more than one documented meaning — filter by year | 1996 | GM sourced |
| QEH | P, TIR, M, TIRE ALL, 205/50R16-87H BW R/ST TL HWY, 10131 E, 0 | — | GM sourced |
| QEJ | P, TIR, M, TIRE ALL, 215/45R17-87V BW R/ST TL HWY, 10131 E, 0 | — | GM sourced |
| QEL | P, TIR, M, TIRE ALL, P175/65R14-84S BW R/PE ST TL ALS this code has more than one documented meaning — filter by year | 1997 | GM sourced |
| QEM | P, TIR, M, TIRE ALL, 195/65R15-91V BW R/ST TL HWY | 1997 | GM sourced |
| QEQ | P, TIR, M, TIRE ALL, 225/45R17-91W BW R/ST TL HWY, 10131 E, 0 | — | Provisional |
| QER | P, TIR, M, TIRE ALL, LT265/75R16/E BW R/PE ST TL OOR (123/120Q), 20308 this code has more than one documented meaning — filter by year | — | GM sourced |
| QES | P, TIR, M, TIRE ALL, P235/75R15-105S BW R/PE ST TL OOR this code has more than one documented meaning — filter by year | 1999 | GM sourced |
| QET | P, TIR, M, TIRE ALL, P225/75R15/N BL R/PE ST TL ALS this code has more than one documented meaning — filter by year | 1988 | GM sourced |
| QEU | Tire All- P225/75r15/n Ws2 R/pe ST TL Als (9591637) | — | Reference |
| QEZ | P, TIR, M, TIRE ALL, 205/65R15-94V BL R/ST TL HWY | 1998 | Provisional |
| QF0 | P, WHL, M, WHEEL, 16 X 7, ALUMINUM, 3 SPOKES | 1999 | Provisional |
| QF1 | P, WHS, R, WHEEL SPARE, 20.0 X 7.5, 10 HOLE, 335.0MM, BC HUB PILOTED, 165.0MM, OFFSET 5 DEGREES | 1998 | Provisional |
| QF2 | P, WHS, R, WHEEL SPARE, 22.5 X 8.25, 10 HOLE, 335.0MM BC, DCT, HUB PILOTED168.0MM OFFSET | 1998 | Provisional |
| QF3 | P, WHL, M, WHEEL, 17 X 8.5 FRT & 18 X 9.5 RR, ALUM, W/SPL OFFSET this code has more than one documented meaning — filter by year | 1998 | GM sourced |
| QF4 | P, WHL, M, WHEEL, 16 X 6, ALUMINUM, 5 TWIN SPOKES | 1998 | Provisional |
| QF5 | P, WHL, M, WHEEL, 17 X 8.5, FRT & 18 X 9.5 RR, ALUM POLISHED | 1998 | GM sourced |
| QF6 | Tires, LT275/70R18E all-terrain, blackwall | 2026 | GM sourced |
| QF7 | P, WHL, M, WHEEL, 17 X 7.5, ALUMINUM, DELUXE | 1999 | GM sourced |
| QF8 | P, WHL, M, WHEEL, 18 X 8, ALUMINUM, POLISHED this code has more than one documented meaning — filter by year | 1999 | GM sourced |
| QF9 | Tires, LT275/65R20 all-terrain, blackwall this code has more than one documented meaning — filter by year | 2026 | GM sourced |
| QFA | P, TIR, M, TIRE ALL, 215/55R16-93H BW R/ST TL HWY | 1998 | Provisional |
| QFB | P, TIR, M, TIRE ALL, P195/70R14-90S BW R/PE ST TL ALS this code has more than one documented meaning — filter by year | 1997 | GM sourced |
| QFC | Tires, LT265/60R20E all-terrain, blackwall this code has more than one documented meaning — filter by year | 2019 | Reference |
| QFD | P, TIR, M, TIRE ALL, P235/75R15-110Q BW R/PE ST TL OOR (LT) | 1997 | GM sourced |
| QFE | Tire All - P185/75r14/n BL R/pe ST TL Als | — | Reference |
| QFF | Tire- P185/75r14/n Ws2 R/pe ST TL Als Als | — | Reference |
| QFG | Tires, LT275/65R20 E 126/123 BF Goodrich off-road T/A KO3 | 2026 | GM sourced |
| QFH | P, TIR, M, TIRE ALL, 215/60R16-95H BW R/PE ST TL HWY | 1997 | GM sourced |
| QFI | P, TIR, M, TIRE ALL, 205/55R16-87V BW R/ST TL | 1999 | Provisional |
| QFJ | P, TIR, M, TIRE ALL, 205/50R16-86W BW R/ST TL HWY | 1997 | 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.