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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 201–300 of 955 codes beginning with B. One meaning shown per code — the best-sourced one we hold. Search above for the rest.
| Code | Meaning | Years | Sourcing |
|---|---|---|---|
| B68 | P, FLOOR, WOODEN | 1999 | Provisional |
| B69 | P, CONTAINER, COMPACT DISCS | 1986 | GM sourced |
| B6A | P, RKR, R, MOLDING ROCKER, CUSTOM, BODY COLOR, 21002 | — | GM sourced |
| B6B | P, FIN, R, FLEET INCENTIVE, CALIFORNIA WATER SERVICE CO. (W-TRK CKMLST), 11008 | — | Provisional |
| B6C | P, FIN, R, FLEET INCENTIVE, MOTOROLA (B/C/D/E/H/J/K/N/U/W-TRK CKGMLST), 20918 P 1 | — | Provisional |
| B6D | P, FIN, R, FLEET INCENTIVE, FIRST AMERICA TITLE INS.(B/C/D/E/G/H/J/K/N/S/U/V/WTRK CKEGMLST), 20801 | — | Provisional |
| B6E | Molding Rocker Sporty | — | Reference |
| B6F | C, MDF, R, MUD FLAPS, REAR, 1215 E 0 | — | Provisional |
| B6G | Plate,door Sill Cover,stainless Steel | — | Reference |
| B6H | Plate Door Sill Cover, Plastic | — | Reference |
| B6I | Molding Rocker Narrow, Accent Color | — | Reference |
| B6J | Molding Rocker Narrow, Molded Color | — | Reference |
| B6N | Caprice Classic Brougham LS Sedan(merchandising Option) | — | Reference |
| B6O | P, EPD, R, DECAL PACKAGE, 01 | 1989 | GM sourced |
| B6P | P, EPD, R, DECAL PACKAGE, 05 | 1989 | GM sourced |
| B6Q | P, EPD, R, DECAL PACKAGE, 02 this code has more than one documented meaning — filter by year | 1989 | GM sourced |
| B6R | P, EPD, R, DECAL PACKAGE, 03 | 1989 | GM sourced |
| B6S | P, TRAVEL BED, PACKAGE this code has more than one documented meaning — filter by year | 1991 | GM sourced |
| B6U | Floor Luggage, Adjustable | — | Reference |
| B6Z | Appearance Package Collector's Special Edition this code has more than one documented meaning — filter by year | — | Reference |
| B70 | C, PLATE, DOOR SILL COVER | 1999 | GM sourced |
| B71 | P, WHM, R, MOLDING WHL OPENING, COLORED this code has more than one documented meaning — filter by year | 1989 | GM sourced |
| B72 | P, ORNAMENTATION, EXTR, MLDG, BELT REVEAL, COLORED this code has more than one documented meaning — filter by year | 1998 | GM sourced |
| B73 | P, CLC, R, CLUSTER COLOR, INST, WHITE | 1999 | Provisional |
| B74 | P, WHM, R, MOLDING WHL OPENING, EXTRA WIDE this code has more than one documented meaning — filter by year | 1989 | GM sourced |
| B75 | P, TLC, R, TRIM EQUIPMENT, LUGG COMPT LINING this code has more than one documented meaning — filter by year | 1998 | GM sourced |
| B76 | P, CLC, R, CLUSTER COLOR, INST, BLACK | 1999 | GM sourced |
| B77 | P, ORNAMENTATION, EXTR, MLDG, W/S REVEAL, COLORED this code has more than one documented meaning — filter by year | 1998 | GM sourced |
| B78 | P, CLC, R, CLUSTER COLOR, INST, RED | 1999 | Provisional |
| B79 | P, CLC, R, CLUSTER COLOR, INST, BLUE | 1999 | GM sourced |
| B7A | Ornamentation,exterior(silver) | — | Reference |
| B7B | Ornamentation,exterior(chestnut) | — | Reference |
| B7C | Ornamentation,exterior(black) | — | Reference |
| B7F | P, FIN, R, FLEET INCENTIVE, LDS CHURCH (H/J/N/S/W-TRK CKGMLST) | 1998 | Provisional |
| B7G | Sill plates, illuminating | 2026 | GM sourced |
| B7H | P, FLEET PROGRAM, INVOICE | 1990 | Provisional |
| B7I | 25th Anniversary Trans AM this code has more than one documented meaning — filter by year | — | Reference |
| B7J | Appearance Package Spring Special Edition this code has more than one documented meaning — filter by year | — | Reference |
| B7K | Injection,electronic Fuel(2-port,without Converter) | — | Reference |
| B7L | P, FLEET PROGRAM, BID ASSISTANCE, OUT OF STOCK (C/F/G/H/J/K/M/N/S/U/V/W/Y-TRK CKGMLPST) | 1998 | Provisional |
| B7M | Injection,electronic Fuel(8-port Without Converter) | — | Reference |
| B7N | P, FIN, R, FLEET INCENTIVE, THE PREMCOR REFINING GROUP (N/U/W-TRK CKST), 20812 this code has more than one documented meaning — filter by year | — | GM sourced |
| B7P | P, FIN, R, FLEET INCENTIVE, WHATABURGER INC. (N/W-TRK CKST), 20926 | — | GM sourced |
| B7Q | Tray Intr, Rr, Parcel | — | Reference |
| B7R | P, FIN, R, FLEET INCENTIVE, ENCOMPASS (D/H/K/N/W-TRK CKGMLST), 20815 P 1 | — | Provisional |
| B7S | Tray Intr, Rr, Parcel, Pull String | — | Reference |
| B7T | P, FIN, R, FLEET INCENTIVE, REVLON INC. (C/H/W), 10815 | — | Provisional |
| B7U | P, FIN, R, FLEET INCENTIVE, DRESSER INDUTRIES, INC. (H/N/W), 11016 this code has more than one documented meaning — filter by year | — | GM sourced |
| B7V | P, FIN, R, FLEET INCENTIVE, PEPSICO/FRITO-LAY (C/F/G/H/J/N/U/W-TRK CKGMLPST) | 1998 | Provisional |
| B7W | Decal Stripe, Cyber Gray | — | Reference |
| B7X | Decal Stripe, Arctic White | — | Reference |
| B7Y | C, PLATE, DOOR SILL COVER, CHROME, 10813 E 0 | — | GM sourced |
| B80 | P, CLC, R, CLUSTER COLOR, INST, BLACK, CHROME | 1999 | GM sourced |
| B81 | P, BSM, R, MOLDING B/S, - DELETE this code has more than one documented meaning — filter by year | 1998 | GM sourced |
| B82 | P, ORNAMENTATION, EXTR, EMBLEM - DELETE this code has more than one documented meaning — filter by year | 1998 | GM sourced |
| B83 | P, RKR, R, MOLDING ROCKER, NARROW this code has more than one documented meaning — filter by year | 1989 | GM sourced |
| B84 | P, BSM, R, MOLDING B/S, EXTERIOR | 1991 | GM sourced |
| B85 | Moldings, Galvano bodyside | 2026 | GM sourced |
| B86 | BODY SIDE LOWER DOOR MOLDINGS - Body-color | 2020 | GM sourced |
| B87 | P, BSM, R, MOLDING B/S, BLACK | 1998 | GM sourced |
| B88 | Moldings, vader bodyside this code has more than one documented meaning — filter by year | 2026 | GM sourced |
| B89 | P, ORNAMENTATION, EXTR, MLDG, RR WINDOW REVEAL, COLORED this code has more than one documented meaning — filter by year | 1998 | GM sourced |
| B8A | P, FIN, R, FLEET INCENTIVE, GOODYEAR (C/H/K/U/W-TRK CKGJMLST), 10815 P, 1 | — | Provisional |
| B8B | P, FIN, R, FLEET INCENTIVE, WILBUR-ELLIS CO. (G/H/W-TRK CKMST), 727 P, 1 | — | Provisional |
| B8E | P, FIN, R, FLEET INCENTIVE, GENERAL MILLS, INC (C/E/F/G/H/J/K/M/N/S/U/V/W- TRK CKGMST), 607 P, 1 | — | Provisional |
| B8G | P, FIN, R, FLEET INCENTIVE, HERITAGE CORPORATION (TRK CKST), 10820 | — | Provisional |
| B8K | P, HLG, R, HANDLING CHARGE, WILMINGTON TO CARS & CONCEPTS BEAR, DELAWARE | 1998 | Provisional |
| B8L | P, HLG, R, HANDLING CHARGE, WILLOW RUN TO CARDINAL AUTO TO HAMTRAMCK ASM | 1993 | Provisional |
| B8M | P, VGM, R, VEHICLE GM, PROD WEEK 01 | 1990 | Provisional |
| B8N | P, VGM, R, VEHICLE GM, PROD WEEK 02 | 1990 | Provisional |
| B8P | P, VGM, R, VEHICLE GM, PROD WEEK 40 | 1990 | Provisional |
| B8Q | P, VGM, R, VEHICLE GM, PROD WEEK 41 | 1990 | Provisional |
| B8R | P, VGM, R, VEHICLE GM, PROD WEEK 42 | 1990 | Provisional |
| B8S | P, VGM, R, VEHICLE GM, PROD WEEK 43 | 1990 | Provisional |
| B8T | P, VGM, R, VEHICLE GM, PROD WEEK 44 | 1990 | Provisional |
| B8U | P, VGM, R, VEHICLE GM, PROD WEEK 45 | 1990 | Provisional |
| B8V | P, VGM, R, VEHICLE GM, PROD WEEK 46 | 1990 | Provisional |
| B8W | P, VGM, R, VEHICLE GM, PROD WEEK 47 | 1990 | Provisional |
| B8X | P, VGM, R, VEHICLE GM, PROD WEEK 48 | 1990 | Provisional |
| B8Y | P, VGM, R, VEHICLE GM, PROD WEEK 49 | 1990 | Provisional |
| B8Z | P, VGM, R, VEHICLE GM, PROD WEEK 50 | 1990 | Provisional |
| B90 | P, ORNAMENTATION, EXTR, MLDG, SIDE WINDOW REVEAL this code has more than one documented meaning — filter by year | 1998 | GM sourced |
| B91 | P, ORNAMENTATION, EXTR, MLDG, DR EDGE GUARD, COLORED this code has more than one documented meaning — filter by year | 1998 | GM sourced |
| B92 | P, ORNAMENTATION, EXTR, FRT FENDER NAME this code has more than one documented meaning — filter by year | 1998 | GM sourced |
| B93 | P, ORNAMENTATION, EXTR, MLDG, DR EDGE GUARD this code has more than one documented meaning — filter by year | 1998 | GM sourced |
| B94 | P, ORNAMENTATION, EXTR, EMBLEM, BODY, VAR 1 this code has more than one documented meaning — filter by year | 1998 | GM sourced |
| B95 | P, BSM, R, MOLDING B/S, COLOR, NARROW WIDTH | 1999 | GM sourced |
| B96 | P, WHM, R, MOLDING WHL OPENING this code has more than one documented meaning — filter by year | 1989 | GM sourced |
| B97 | P, ORNAMENTATION, EXTR, MLDG, LOWER ACCENT this code has more than one documented meaning — filter by year | 1998 | GM sourced |
| B98 | P, STRIP, BODY SIDE - DELETE this code has more than one documented meaning — filter by year | 1998 | GM sourced |
| B99 | P, COVERING, FLOOR CARPET, LOAD FLOOR , DELUXE, 328 E, 5 | — | Provisional |
| B9A | P, VGM, R, VEHICLE GM, PROD WEEK 51 | 1990 | Provisional |
| B9B | P, FIN, R, FLEET INCENTIVE, SP&H CRANE & HOIST, INC. (TRK CK), 20813 | — | Provisional |
| B9C | P, VGM, R, VEHICLE GM, PROD WEEK 03 | 1990 | Provisional |
| B9D | P, VGM, R, VEHICLE GM, PROD WEEK 04 | 1990 | Provisional |
| B9E | P, VGM, R, VEHICLE GM, PROD WEEK 05 | 1990 | Provisional |
| B9F | P, VGM, R, VEHICLE GM, PROD WEEK 06 | 1990 | Provisional |
| B9G | P, VGM, R, VEHICLE GM, PROD WEEK 07 | 1990 | Provisional |
| B9H | P, VGM, R, VEHICLE GM, PROD WEEK 08 | 1990 | Provisional |
| B9I | P, HLG, R, HANDLING CHARGE, WILLOW RUN ASSEMBLY TO CANFIELD EQUIP SERVICE WARREN, MI | 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.