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 1–100 of 955 codes beginning with B. One meaning shown per code — the best-sourced one we hold. Search above for the rest.

CodeMeaningYearsSourcing
B00 P, EQC, R EQUIPMENT ADDITIONAL, INDONESIA 1998 GM sourced
B01 P, CKD OPTION, TUNISIA 1997 Provisional
B02 P, EQC, R EQUIPMENT ADDITIONAL, SOUTH AFRICA 1998 GM sourced
B03 P, EQC, R EQUIPMENT ADDITIONAL, THAILAND 1996 GM sourced
B04 P, EQC, R EQUIPMENT ADDITIONAL, TAIWAN 1998 GM sourced
B05 P, BDS, M BODY EQUIPMENT, ARMORED 1998 GM sourced
B06 P, BDS, M BODY EQUIPMENT, AMBULANCE this code has more than one documented meaning — filter by year 1985 GM sourced
B07 P, EQC, R EQUIPMENT ADDITIONAL, INDIA 1996 GM sourced
B08 P, EQC, R EQUIPMENT ADDITIONAL, BRAZIL 1998 GM sourced
B09 P, EQC, R EQUIPMENT ADDITIONAL, EGYPT 1998 GM sourced
B0A P, VGM, R VEHICLE GM, PROD WEEK 19 1990 GM sourced
B0B P, VGM, R VEHICLE GM, PROD WEEK 20 1990 GM sourced
B0C P, VGM, R VEHICLE GM, PROD WEEK 21 1990 GM sourced
B0D P, VGM, R VEHICLE GM, PROD WEEK 22 1990 GM sourced
B0E P, VGM, R VEHICLE GM, PROD WEEK 23 1990 GM sourced
B0F P, VGM, R VEHICLE GM, PROD WEEK 24 1990 GM sourced
B0G P, VGM, R VEHICLE GM, PROD WEEK 25 1990 GM sourced
B0H P, VGM, R VEHICLE GM, PROD WEEK 26 1990 GM sourced
B0J P, VGM, R VEHICLE GM, PROD WEEK 27 1990 GM sourced
B0K P, VGM, R VEHICLE GM, PROD WEEK 28 1990 GM sourced
B0L P, VGM, R VEHICLE GM, PROD WEEK 29 1990 GM sourced
B0M P, VGM, R VEHICLE GM, PROD WEEK 30 1990 GM sourced
B0N P, VGM, R VEHICLE GM, PROD WEEK 31 1990 GM sourced
B0P P, VGM, R VEHICLE GM, PROD WEEK 32 1990 GM sourced
B0Q P, VGM, R VEHICLE GM, PROD WEEK 33 1990 GM sourced
B0R P, VGM, R VEHICLE GM, PROD WEEK 34 1990 GM sourced
B0S P, VGM, R VEHICLE GM, PROD WEEK 35 1990 GM sourced
B0T P, VGM, R VEHICLE GM, PROD WEEK 36 1990 GM sourced
B0U P, VGM, R VEHICLE GM, PROD WEEK 37 1990 GM sourced
B0V P, VGM, R VEHICLE GM, PROD WEEK 38 1990 GM sourced
B0W P, VGM, R VEHICLE GM, PROD WEEK 39 1990 GM sourced
B0X P, VGM, R VEHICLE GM, PROD WEEK 52 1990 GM sourced
B0Y P, VGM, R VEHICLE GM, PROD WEEK 53 this code has more than one documented meaning — filter by year 1993 GM sourced
B0Z P, FIN, R FLEET INCENTIVE, BOB EVANS FARMS (N/W-TRK CKGST), 10807 — GM sourced
B10 P, EQC, R EQUIPMENT ADDITIONAL, MALAYSIA 1998 GM sourced
B11 P, EQC, R EQUIPMENT ADDITIONAL, TURKEY 1998 GM sourced
B12 P, EQC, R EQUIPMENT ADDITIONAL, RUSSIA 1996 GM sourced
B13 P, EQC, R EQUIPMENT ADDITIONAL, AUSTRALIA this code has more than one documented meaning — filter by year 1996 GM sourced
B14 P, EQC, R EQUIPMENT ADDITIONAL, HONG KONG 1998 GM sourced
B15 P, EQC, R EQUIPMENT ADDITIONAL, PHILIPPINE ISLANDS 1998 GM sourced
B16 P, TLR, R WIRING HARNESS, 13 PIN SOCKET, TRAILER this code has more than one documented meaning — filter by year 1999 GM sourced
B17 P, ORNAMENTATION, INTR, PREMIUM 1997 Provisional
B18 P, ORNAMENTATION, INTR, DELUXE this code has more than one documented meaning — filter by year 1983 GM sourced
B19 P, ORNAMENTATION, INTR, CUSTOM this code has more than one documented meaning — filter by year 1983 GM sourced
B1A P, POE, R PORT OF ENTRY, CAMI this code has more than one documented meaning — filter by year 1998 GM sourced
B1B P, MODIFICATION, FOUR SEATER 1990 GM sourced
B1C P, PROTECTOR, BASE COAT, CLEAR COAT 1998 GM sourced
B1D Port OF Entry Benicia, California — Reference
B1F Canadian Pontiac Tempest — Reference
B1G Ornamentation Nameplate 'g3' — Reference
B1J Wheelhouse liners, rear 2026 GM sourced
B1K Corsica LT Package Components(used With LT Z11) — Reference
B1L Tire All- P175/70 Sr13/n BL R/pe ST TL Als. — Reference
B1M Tire All- P185/60 Hr14/n BL R/pe ST TL Als — Reference
B1N Tire All- P165/65 R13 BL R/pe ST TL Al3. — Reference
B1Q Lock,tailgate Power — Reference
B1R Tire All- P185/60 Vr14/n BL R/pe ST TL Al3 — Reference
B1T P, BUILDOUT, PLANT 1998 Provisional
B1V Door handles, chrome 2026 GM sourced
B1X Steering Gear Ratio — Reference
B1Y Components,overseas(export-iraq) — Reference
B1Z P, EXPORT VEHICLE, DOMESTIC 1990 GM sourced
B20 P, ORNAMENTATION, INTR, LUXURY this code has more than one documented meaning — filter by year 1983 GM sourced
B21 P, ORNAMENTATION, INTR, DR HANDLE, SOFT TRIM 1999 Provisional
B22 P, ORNAMENTATION, INTR, EMBLEM, DR INNER PANEL this code has more than one documented meaning — filter by year 1983 GM sourced
B23 P, ORNAMENTATION, EXTR, WHEEL OPG SPOILER this code has more than one documented meaning — filter by year 1998 GM sourced
B24 P, ORNAMENTATION, EXTR, MLDG, SIDE WINDOW REVEAL, COLORED this code has more than one documented meaning — filter by year 1998 GM sourced
B25 P, TLC, R TRIM EQUIPMENT, LUGG COMPT, DELUXE this code has more than one documented meaning — filter by year 1984 GM sourced
B26 P, SALES PACKAGE, SAFETY PACKAGE this code has more than one documented meaning — filter by year 1998 Provisional
B27 P, SALES PACKAGE, EXTERIOR PLUS PACKAGE 1998 Provisional
B28 P, SALES PACKAGE, ELECTRICAL PACKAGE 1998 Provisional
B29 2013 Oem Engine Physical ID B29 & Production Number 12638977 — Reference
B2B Components OF Z52 Sport Handling Package — Reference
B2C P, ORNAMENTATION, LETTERING "1.8", RR, 20715 E 0 — Provisional
B2E P, SALES, SPRING SPECIAL PACKAGE 1991 GM sourced
B2F P, VEHICLE, DISTRIBUTION CHANGE FOR BUILDOUT 1998 Provisional
B2G Components OF Iroc-z Package — Reference
B2H Olympic Eurosport(merchandising Option) — Reference
B2I Molding B/s Lower, Extra Wide, Accent Color — Reference
B2J Olympic 6000 Le(merchandising Option)(canadian) — Reference
B2K P, VEHICLE, TURBO TO CALLAWAY OLD LYME, CONN this code has more than one documented meaning — filter by year 1998 Provisional
B2L P, PERFORMANCE PACKAGE, ENGINE PACKAGE V8, 5.7L. PFI this code has more than one documented meaning — filter by year 1999 GM sourced
B2M P, IDENTIFICATION, FIRST THREE WEEKS ORDERS 1998 Provisional
B2N Sales Fall Special Package this code has more than one documented meaning — filter by year — Reference
B2P P, VEHICLE, TRACKING OPTION 1998 Provisional
B2Q P, PANEL, RR ROOF, BLACK - DELETE 1998 GM sourced
B2R Tire All-p175/70hr13 BL R/pe ST TL Als — Reference
B2S Spring,rear Leaf Traverse,lh — Reference
B2U Spring,rear Leaf Traverse,rh — Reference
B2V P, FIN, R FLEET INCENTIVE, SUPERVALU, INC. (H/W-TRK CKG), 20809 — GM sourced
B2W Tire All-p205/75r15/ — Reference
B2X P, FIN, R FLEET INCENTIVE, XEROX COMPANY (H/L/N/U/W-TRK CKGMLST) 1999 GM sourced
B2Y P, FIN, R FLEET INCENTIVE, GENERAL ELECTRIC CO (A/B/C/H/J/L/N/U/W-TRK CKGMST) this code has more than one documented meaning — filter by year 1998 Provisional
B2Z Deluxe Trim Package — Reference
B30 color-keyed carpet floor covering 2026 GM sourced
B31 P, FLC, R COVERING FLOOR, VINYL, FRT, FULL WIDTH this code has more than one documented meaning — filter by year 1998 GM sourced
B32 Floor mats, rubberized vinyl this code has more than one documented meaning — filter by year 2026 GM sourced
B33 Floor mats, rubberized-vinyl rear this code has more than one documented meaning — filter by year 2026 GM sourced
B34 Floor mats, carpeted front this code has more than one documented meaning — filter by year 2026 GM sourced
B35 Floor mats, carpeted rear this code has more than one documented meaning — filter by year 2026 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.

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