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 301–400 of 702 codes beginning with Y. One meaning shown per code — the best-sourced one we hold. Search above for the rest.

CodeMeaningYearsSourcing
YC2 P, CND, R CONVENIENCE PKG, DECOR LEVEL #2(MONTANA), 20219 — GM sourced
YC3 P, CND, R CONVENIENCE PKG, DECOR LEVEL #3 this code has more than one documented meaning — filter by year 1989 GM sourced
YC4 P, AXLE, 5,000 LB this code has more than one documented meaning — filter by year 1997 GM sourced
YC5 P, CND, R CONVENIENCE PKG, DECOR LEVEL #5 this code has more than one documented meaning — filter by year 1989 GM sourced
YC6 P, CND, R CONVENIENCE PKG, DECOR LEVEL #6 this code has more than one documented meaning — filter by year 1989 GM sourced
YC7 P, CND, R CONVENIENCE PKG, DECOR LEVEL #7 this code has more than one documented meaning — filter by year 1989 GM sourced
YC9 Convenience Pkg,decor Level #9 — Reference
YCA P, RTR, M TIRE REAR, P205/75R15-97S WOL R/PE ST TL ALS this code has more than one documented meaning — filter by year 1997 GM sourced
YCB P, RTR, M TIRE REAR, P235/55R16-96T BW R/PE ST TL AL2 this code has more than one documented meaning — filter by year 1997 GM sourced
YCC P, RTR, M TIRE REAR, P255/70R16 BW R/PE ST TL ALS this code has more than one documented meaning — filter by year 1996 GM sourced
YCE P, RTR, M TIRE REAR, P205/75R15/N BL R/PE ST TL ALS this code has more than one documented meaning — filter by year 1988 GM sourced
YCI Tire Rear P255/45zr17 BL R/pe ST TL Hw4 Export — Reference
YCJ P, RTR, M TIRE REAR, P255/70R16 WOL R/PE ST TL ALS this code has more than one documented meaning — filter by year 1996 GM sourced
YCK P, RTR, M TIRE REAR, P215/70R15-97S WOL PE/ST TL AL2 this code has more than one documented meaning — filter by year 1998 GM sourced
YCM P, RTR, M TIRE REAR, P215/75R15-100S WOL R/PE ST TL ALS this code has more than one documented meaning — filter by year 1997 GM sourced
YCN Tire Rear P275/60r15/n BL R/pe ST TL Al3 (9591303) — Reference
YCP P, RTR, M TIRE REAR, P255/70R16-109H BW R/PE ST TL ALS this code has more than one documented meaning — filter by year 1997 GM sourced
YCU P, RTR, M TIRE REAR, P215/75R15/N BL R/PE ST TL ALS this code has more than one documented meaning — filter by year 1988 GM sourced
YCV Tire Rear P215/75r15/n Xnw R/pe ST TL Als (9591059) — Reference
YCW Tire Rear P215/75r15/n Rwl R/pe ST TL Als (9591060) — Reference
YD1 P, IDENTIFICATION, OPTIONAL MATL this code has more than one documented meaning — filter by year 1998 GM sourced
YD2 P, ORDER MODIFICATION, MILITARY VEHICLES 1997 Provisional
YD3 P, AXLE, (BASE EQUIP) FOR SCHEDULING GVW PLATE this code has more than one documented meaning — filter by year 1989 GM sourced
YD4 P, EQUIPMENT, NO CHARGE 1991 GM sourced
YD5 P, SPRING FRONT, BASE EQUIPMENT 1984 GM sourced
YD6 P, SPRING, RR, BASE EQUIPMENT 1997 GM sourced
YD7 P, AXLE, (USED WITH R05) FOR SCHEDULING GVW PLATE this code has more than one documented meaning — filter by year 1989 GM sourced
YD8 P, SPRING FRONT, BASE EQUIPMENT, SCHEDULING GVW PLATE this code has more than one documented meaning — filter by year 1997 GM sourced
YD9 P, SPRING, RR, BASE EQUIPMENT, SCHEDULING GVW PLATE this code has more than one documented meaning — filter by year 1997 GM sourced
YDE P, RTR, M TIRE REAR, 7.50-16LT/D BL D/NY TL HWY 1988 GM sourced
YDF P, RTR, M TIRE REAR, P255/45R17-95V BW R/PE ST TL AL3, 20305 — GM sourced
YDG P, RTR, M TIRE REAR, P235/50R18-97W BW R/PE ST TL AL3, 20305 — GM sourced
YDM P, RTR, M TIRE REAR, 7.50-16LT/E BL D/NY TL HWY 1988 GM sourced
YDQ P, RTR, M TIRE REAR, 10.00R20/H 16PR BL RADIAL TT 1988 GM sourced
YDS 2010 Oem Engine Physical ID Yds & Production Number 98097698 — Reference
YDT 2010 Oem Engine Physical ID Ydt & Production Number 98097699 — Reference
YDU 2010 Oem Engine Physical ID Ydu & Production Number 98097700 — Reference
YE1 Convenience Pkg Decor Level #1, Base Trim (export) — Reference
YE2 P, CND, R CONVENIENCE PKG, DECOR LEVEL #2, LOW TRIM this code has more than one documented meaning — filter by year 1990 GM sourced
YE3 P, CND, R CONVENIENCE PKG, DECOR LEVEL #3, HIGH TRIM this code has more than one documented meaning — filter by year 1990 GM sourced
YE4 Ornamentation,interior And Exterior(deluxe) — Reference
YE5 P, CND, R CONVENIENCE PKG, DELUXE COMFORT & DECOR LEVEL #5, 10305 — GM sourced
YE6 P, CBB, R COMMERCIAL BODY, CREW CAB, 20123 E 8 — Provisional
YE7 P, VEHICLE, TELECOMMUNICATIONS, INC (TCI) this code has more than one documented meaning — filter by year 1998 GM sourced
YE8 P, VEHICLE, TEST, ENGINEERING 1988 GM sourced
YE9 Silverado / SLE trim 1990 GM sourced
YEA Tire Rear 7.50-16lt/d BL D/pe TL Hwy — Reference
YEB P, RTR, M TIRE REAR, P235/75R15/N WOL R/PE ST TL OOR this code has more than one documented meaning — filter by year 1988 GM sourced
YEC P, RTR, M TIRE REAR, LT215/85R16/E BW R/ST ST TL HWY this code has more than one documented meaning — filter by year 1994 GM sourced
YED Tire Rear 8.00r19.5/e BW R/st TL Bridgestone — Reference
YEF P, RTR, M TIRE REAR, LT215/85R16/E BW R/PE ST TL OOR this code has more than one documented meaning — filter by year 1999 GM sourced
YEG P, RTR, M TIRE REAR, 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
YEK P, RTR, M TIRE REAR, 7.50-16LT 12PR BL D/NY TT HWY 7000KG GVM, (OVERSEAS) 1998 Provisional
YEN P, RTR, M TIRE REAR, P235/75R16-109S BW R/PE ST TL ALS this code has more than one documented meaning — filter by year 1999 GM sourced
YEO P, RTR, M TIRE REAR, P235/75R16-109S WS R/PE ST TL ALS this code has more than one documented meaning — filter by year 1999 GM sourced
YEP P, RTR, M TIRE REAR, P235/75R16-109S WOL R/PE ST TL ALS this code has more than one documented meaning — filter by year 1999 GM sourced
YER P, RTR, M TIRE REAR, LT265/75R16/E BW R/PE ST TL OOR (123/120Q), 20308 — GM sourced
YES P, RTR, M TIRE REAR, P235/75R15-105S BW R/PE ST TL OOR this code has more than one documented meaning — filter by year 1999 GM sourced
YET P, RTR, M TIRE REAR, P225/75R15 BW R/PE ST TL ALS, 11108 this code has more than one documented meaning — filter by year — GM sourced
YEU Tire Rear P225/75r15/n Xnw R/pe ST TL Als — Reference
YEV Tire P225/75r15 (steel Belted) Als Radial Rwl — Reference
YEW P, RTR, M TIRE REAR, 7.00R16/E 10PR BL R/ST TT (GVM 5200KG) 1997 Provisional
YF1 P, SALES PACKAGE, CUTAWAY UPFITTER this code has more than one documented meaning — filter by year 1995 GM sourced
YF2 P, SALES PACKAGE, AMBULANCE UPFITTER this code has more than one documented meaning — filter by year 1992 GM sourced
YF3 P, SALES PACKAGE, CHEVROLET LIMITED this code has more than one documented meaning — filter by year 1998 GM sourced
YF4 P, VEHICLE, ENGINEERING, HOLD ORDER 1991 GM sourced
YF5 Emissions, California state requirements 2026 GM sourced
YF6 P, SALES PROCESSING OPT, GEOGRAPHIC CONTROL - CALIFORNIA 1991 GM sourced
YF7 P, SALES PACKAGE, RECREATIONAL VEHICLE, UPFITTER this code has more than one documented meaning — filter by year 1997 GM sourced
YF8 P, ORDER MODIFICATION, TRUCK FORECASTING, SAMPLE 1991 GM sourced
YF9 P, SALES PACKAGE, RECREATIONAL VEHICLE, UPFITTER, EXPORT this code has more than one documented meaning — filter by year 1998 GM sourced
YFA Tire Rear P235/75r15 Wol R/pe ST TL Als 105s — Reference
YFD Tire Rear P225/75r15 Wol R/pe ST TL Oor 102s — Reference
YFJ P, RTR, M, TIRE REAR, P325/30ZR19-94Y BW TL HW4 EMT, 1204 — GM sourced
YFL P, RTR, M, TIRE REAR, P235/75R15-105S BW R/PE ST TL ALS this code has more than one documented meaning — filter by year 1997 GM sourced
YFN P, RTR, M, TIRE REAR, P235/75R15-105S RWL R/PE ST TL ALS 1997 GM sourced
YFR Tire Rear P255/45zr17 BW TL Sbr Hw4 Emt — Reference
YFS Tire Rear P285/40zr17 BW TL Sbr Hw4 Emt — Reference
YFT Tire Rear P205/75r14/n BL R/pe ST TL Als (9590957) — Reference
YFU P, RTR, M, TIRE REAR, P295/35R18-91Y BW R/PE ST TL HW4 this code has more than one documented meaning — filter by year 1998 GM sourced
YFX P, RTR, M, TIRE REAR, P285/35ZR19-90Y BW HW4 (EMT), 608 — GM sourced
YG0 P, CBB, R, COMMERCIAL BODY, CREW CAB, AWD, 20208 E 8 — Provisional
YG1 Molding,body Side Upper And Lower Wheel Opening(painted) — Reference
YG2 Woodgrain Insert And Nameplate — Reference
YG3 Molding,body Side And Wheel Opening(bright) this code has more than one documented meaning — filter by year — Reference
YG4 P, OPTIONAL SEAT, NOT DESIRED 1992 GM sourced
YG5 P, IDENTIFICATION, (SEO) USAGE this code has more than one documented meaning — filter by year 1998 GM sourced
YG6 P, HTR, M, HVAC SYSTEM, AIR CONDITIONING, NOT DESIRED - NOTE: DO NOT USE AFTER 2001 MDL YR, URC 4/24/96 -USE C41 AFTER 2001 this code has more than one documented meaning — filter by year 1998 GM sourced
YG7 Bonanza Package B,royal Sierra Package B — Reference
YG8 P, IDENTIFICATION, P.E.P. VEHICLE this code has more than one documented meaning — filter by year 1991 GM sourced
YG9 P, WAR, R, WARRANTY, ENGINE ONLY, 100,000 MILES, 5 YEARS this code has more than one documented meaning — filter by year 1998 GM sourced
YGA P, RTR, M, TIRE REAR, P245/75R16-109S BW R/PE ST TL AT this code has more than one documented meaning — filter by year 1997 GM sourced
YGB P, RTR, M, TIRE REAR, P245/75R16-109S WOL R/PE ST TL AT this code has more than one documented meaning — filter by year 1997 GM sourced
YGC P, RTR, M, TIRE REAR, P265/75R16-114S BW R/PE ST TL AT this code has more than one documented meaning — filter by year 1997 GM sourced
YGD P, RTR, M, TIRE REAR, P265/75R16-114S WOL R/PE ST TL AT this code has more than one documented meaning — filter by year 1997 GM sourced
YGH P, RTR, M, TIRE REAR, P275/40R18-94Y BW TL HW4 R/ST EMT, 20308 — GM sourced
YGI Tire Rear 8.75r16.5/e BL R/pe ST NY TL Hwy — Reference
YGJ P, RTR, M, TIRE REAR, P285/35ZR19-90Y BW HW4 (EMT) HI-PERFORMANCE, 608 — GM sourced
YGK P, RTR, M, TIRE REAR, LT245/75R16/E BW R/PE ST TL OOR 120Q this code has more than one documented meaning — filter by year 1997 GM sourced
YGL P, RTR, M, TIRE REAR, LT265/75R16/C BL R/PE ST OOR this code has more than one documented meaning — filter by year 1988 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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