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 501–600 of 702 codes beginning with Y. One meaning shown per code — the best-sourced one we hold. Search above for the rest.

CodeMeaningYearsSourcing
YMD P, RTR, M, TIRE REAR, P225/75R15/X BW R/PE ST TL OOR 105Q (X/LOAD), 224 — GM sourced
YME P, RTR, M, TIRE REAR, P275/40R18-94Y BW R/PE ST TL HW4, 20308 — GM sourced
YMH Tire Rear P275/40zr18 BW R/pe ST TL Hw4 — Reference
YMJ P, RTR, M, TIRE REAR, P265/70R16-111S BW R/PE ST TL AL2 this code has more than one documented meaning — filter by year 1997 GM sourced
YMK P, RTR, M, TIRE REAR, P265/70R16-111S WOL R/PE ST TL AL2 this code has more than one documented meaning — filter by year 1997 GM sourced
YMO P, RTR, M, TIRE REAR, 235/75R15-105S BW R/PE ST TL AT, 224 — GM sourced
YMP P, RTR, M, TIRE REAR, LT245/75R16/E BW R/PE ST TL ALS 120R, 10612 — GM sourced
YMR Tire Rr-p205/65r15/ N BL R/pe ST Al2 — Reference
YMT Tire Rear P235/55r16 BW R/pe ST TL Al2 96s — Reference
YMW P, RTR, M, TIRE REAR, P195/75R14/N BL R/PE ST TL ALS this code has more than one documented meaning — filter by year 1988 GM sourced
YN1 P, PROCESSING, AREA ORDER, HIGH ALTITUDE 1994 Provisional
YN2 P, PROCESSING, STATE OF CALIFORNIA 1994 Provisional
YN3 P, PROCESSING, STATE OF NEW YORK 1994 Provisional
YN4 P, PROCESSING, CANADIAN ORDERS 1994 Provisional
YN5 P, PROCESSING, ORDER TO DELIVERY, 404 — Provisional
YN6 P, PROCESSING, DOMESTIC ORDERS 1994 Provisional
YN7 P, PROCESSING, CENTRAL OFFICE ORDERS 1994 Provisional
YN8 P, PROCESSING, CHARGE TO OUTLET, CALIFORNIA 1994 Provisional
YN9 P, PROCESSING, SHIP TO OUTLET, CALIFORNIA 1994 Provisional
YNA P, RTR, M, TIRE REAR, 205/65R15-94H BW R/PE ST TL HWY 1997 GM sourced
YNC P, RTR, M, TIRE REAR, 245/70R19.5/H 16PR BL TL RAD, 10709 — GM sourced
YNF P, RTR, M, TIRE REAR, P235/75R16-106S BW R/PE ST TL ALS this code has more than one documented meaning — filter by year 1997 GM sourced
YNG P, RTR, M, TIRE REAR, P235/75R16-106S WOL R/PE ST TL ALS this code has more than one documented meaning — filter by year 1997 GM sourced
YNI P, RTR, M, TIRE REAR, 225/60R16-98W BW R/PE ST TL HW4, 1130 — GM sourced
YNK P, RTR, M, TIRE REAR, P245/75R16-109S BW R/PE ST TL ALS this code has more than one documented meaning — filter by year 1997 GM sourced
YNL P, RTR, M, TIRE REAR, P245/75R16-109S WOL R/PE ST TL ALS this code has more than one documented meaning — filter by year 1997 GM sourced
YNM P, RTR, M, TIRE REAR, P245/70R17-108H BW TL ST ALS, 20405 — GM sourced
YNP Tire Rear 8.00r19.5/d BL R/st ST TL Hwy Michelin (14065888) — Reference
YNT P, PLT, R, PLANT CODE, SGM YANTAI, CHINA, 21011 — GM sourced
YNX P, RTR, M, TIRE REAR, P225/60R16-97S BL R/PE ST TL AL2 this code has more than one documented meaning — filter by year 1999 GM sourced
YO9 P, HLG, R, HANDLING CHARGE, ON-STAR/WOODHAVEN 1999 Provisional
YP1 California Seville Package(merchandising Option) — Reference
YP3 P, SGR, R, MERCHANDISED PKG, ELDORADO COLLECTOR'S EDITION, 10108 M 4, 4, A — GM sourced
YP4 P, SGR, R, MERCHANDISED PKG, CADILLAC ELDORADO "MONOCHROMATIC" TOURING COUPE 1998 GM sourced
YP5 Eldorado Touring Coupe Option this code has more than one documented meaning — filter by year — Reference
YP6 Seville Touring Sedan 'sts' this code has more than one documented meaning — filter by year — Reference
YP7 Cadillac Deville D`elegance(6kd69 + Yp7 = 6ke69) this code has more than one documented meaning — filter by year — Reference
YP8 Convertible,reatta(merchandising Option)(4ec97 + Yp8= 4ec67) this code has more than one documented meaning — filter by year — Reference
YP9 Spring Special Package(merchandising Option) — Reference
YPA P, RTR, M, TIRE REAR, P215/70R15-97S WOL PE ST TL AL2 (HIGH WET/SNOW TRACTION PERFORMANCE) this code has more than one documented meaning — filter by year 1998 GM sourced
YPB Tire Rear 7.50-16lt/c BL D/ny TT Oor (346988) — Reference
YPE Tire Rear 7.50-16lt/d BL D/pe TT Hwy (362157) — Reference
YPF P, RTR, M, TIRE REAR, 6.50-16 8PR BL /NY (OVERSEAS), (DUP WITH YPA) this code has more than one documented meaning — filter by year 1997 GM sourced
YPG P, RTR, M, TIRE REAR, 7.00-16 8PR BL /NY (OVERSEAS) this code has more than one documented meaning — filter by year 1997 GM sourced
YPH P, RTR, M, TIRE REAR, 7.50-17/D 8PR BW TT HWY 1993 GM sourced
YPI Tire Rear P285/35zr19 BW Hw4 (emt) — Reference
YPK P, RTR, M, TIRE REAR, P215/70R15-97S BW R/PE ST TL ALS this code has more than one documented meaning — filter by year 1997 GM sourced
YPL P, RTR, M, TIRE REAR, 7.50-16 10PR BL TT 1997 Provisional
YPO P, RTR, M, TIRE REAR, P245/70R17-108S WOL TL ST ALS, 20405 — GM sourced
YPP Tire Rear P215/65r15/n Wol R/pe ST TL Al3 95h — Reference
YPR P, RTR, M, TIRE REAR, P245/70R17-108S BW TL ST ALS, 20405 — GM sourced
YPS Tire Rear P335/25zr20 BW TL Hw4 Emt — Reference
YPU P, RTR, M, TIRE REAR, P215/70R15-97S BW R/PE ST TL AL2 this code has more than one documented meaning — filter by year 1997 GM sourced
YPX Tire Rear P225/60r16-97s BW R/pe ST TL Als — Reference
YPY Tire Rear 7.50-20/d 8pr BL Bias TT — Reference
YPZ Tire Rear P235/65r15 Rwl R/pe ST TL Al2 100s — Reference
YQ1 P, INF, M, INFOTAINMENT SYSTEM, 009, 20517 E 4 — GM sourced
YQ2 P, INF, M, INFOTAINMENT SYSTEM, 010, 20517 E 4 — GM sourced
YQ3 P, INF, M, INFOTAINMENT SYSTEM, 011, 20517 E 4 — GM sourced
YQ4 P, INF, M, INFOTAINMENT SYSTEM, 012, 20517 E 4 — GM sourced
YQ5 P, INF, M, INFOTAINMENT SYSTEM, 013, 20517 E 4 — GM sourced
YQ6 P, INF, M, INFOTAINMENT SYSTEM, 014, 20517 E 4 — GM sourced
YQ7 P, INF, M, INFOTAINMENT SYSTEM, 015, 20517 E 4 — GM sourced
YQ8 Infotainment System 016 — Reference
YQG P, RTR, M, TIRE REAR, P235/70R15-102V BW R/PE ST TL AL3 this code has more than one documented meaning — filter by year 1997 GM sourced
YQK P, RTR, M, TIRE REAR, 8.25R16 14PR BL R/ST TT HWY (OVERSEAS), (DUP WITH YQM 1997 Provisional
YQL Tire Rear 8.25-20.0/e 10pr BL Bias TT — Reference
YQP P, RTR, M, TIRE REAR, 8.25R-20/G 14PR BW R/ST TL OOR 1991 Provisional
YQQ P, RTR, M, TIRE REAR, 8.25R-20 14PR BL R/ST TL HWY (OVERSEAS) 1997 Provisional
YQS Tire Rear 7.50-20/e 10pr BL Bias TT — Reference
YQT Tire Rear 8.00r19.5/e 10pr BL Radial TL — Reference
YQX Tire Rear 8.25r20.0/f 12pr BL Radial TT this code has more than one documented meaning — filter by year — Reference
YR1 Seat,front(custom) — Reference
YR2 Seat,front(deluxe) — Reference
YR3 Seat,front(luxury) — Reference
YRA P, RTR, M, TIRE REAR, 215/85R16/E BW TL ALS this code has more than one documented meaning — filter by year 1998 GM sourced
YRB P, RTR, M, TIRE REAR, 9.00-20/G 14PR BW BIAS TT 1998 Provisional
YRD P, RTR, M, TIRE REAR, P215/70R16-99S BW PE/ST TL ALS this code has more than one documented meaning — filter by year 1999 GM sourced
YRH P, RTR, M, TIRE REAR, 215/85R16/E BW TL (R187 TREAD), 229 — GM sourced
YRI P, RTR, M, TIRE REAR, 215/85R16/E BW TL HWY this code has more than one documented meaning — filter by year 1998 GM sourced
YRL P, RTR, M, TIRE REAR, 235/80R22.5/G 14PR BL TL RADIAL this code has more than one documented meaning — filter by year 1988 GM sourced
YRM Tire Rear 255/70r22.5/g 14pr BL Radial TL — Reference
YRN P, RTR, M, TIRE REAR, 295/75R22.5/G 14PR BL TL RADIAL this code has more than one documented meaning — filter by year 1987 GM sourced
YRP P, RTR, M, TIRE REAR, 11.00R20/H 16PR BL RADIAL TT this code has more than one documented meaning — filter by year 1986 GM sourced
YRQ Tire Rear, 8.00-16.5/c BL D/pe TL Hwy — Reference
YRR P, RTR, M, TIRE REAR, 11.00R20/G 14PR BL RADIAL TT this code has more than one documented meaning — filter by year 1986 GM sourced
YRS Tire Rear 8.00-16.5/d BL D/pe TL Hwy — Reference
YRU Tire Rear 8.75rx16.5lt/d BL R/pe ST TL Hwy — Reference
YRV P, RTR, M, TIRE REAR, 285/75R24.5/G 14PR BL TL RADIAL this code has more than one documented meaning — filter by year 1987 GM sourced
YS1 Seat,rear(custom) — Reference
YS2 Seat,rear(deluxe) — Reference
YS3 Seat,rear(luxury) — Reference
YSA Tire P205/75-r14sbr (tbls) All Seasons WL this code has more than one documented meaning — filter by year — Reference
YSB P, RTR, M, TIRE REAR, 255/80R22.5/G 14PR BL TL RADIAL this code has more than one documented meaning — filter by year 1989 GM sourced
YSD Tire Rear 8.00-16.5lt/d BL D/ny (462572) — Reference
YSE Tire Rear 8.00-19.5/d BL D/ny TL Oor (3770663) — Reference
YSF Tire Rear 8.00-19.5/d BL D/ny TL Hwy (3744446) — Reference
YSG P, RTR, M, TIRE REAR, 8.00-19.5/E BL D/NY TL HWY this code has more than one documented meaning — filter by year 1988 GM sourced
YSH P, RTR, M, TIRE REAR, 275/80R22.5/G 14PR BL TL RADIAL this code has more than one documented meaning — filter by year 1987 GM sourced
YSJ P, RTR, M, TIRE REAR, 275/80R24.5/G 14PR BL TL RADIAL this code has more than one documented meaning — filter by year 1987 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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