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 401–500 of 625 codes beginning with L. One meaning shown per code — the best-sourced one we hold. Search above for the rest.

CodeMeaningYearsSourcing
LP7 P, ENG, M, ENGINE, ALCOHOL, 4 CYL, 1.6L, 2BBL, L4, GM 1996 GM sourced
LP8 Engine Gas, 4 Cyl, 2.4l, Mfi, L4 Sohc, E85, Bra — Reference
LP9 P, ENG, M, ENGINE, GAS, 6 CYL, 2.8L, SFI, TURBO, ALUM, 60 DEGREES, GM this code has more than one documented meaning — filter by year 1999 GM sourced
LPA P, PWO, M, POWER OPTION, DURAMAX, 7.2L, 175 GROSS HP @ 2,400 RPM, 10312 — GM sourced
LPC P, PWO, M, POWER OPTION, DURAMAX, 7.8L, 250 GROSS HP @ 2,200 RPM, 10904 — GM sourced
LPD Power Option Duramax, 6.6l, 300 Gross Hp/605 Lb-ft — Reference
LPE P, PWO, M, POWER OPTION, DURAMAX, 7.8L, 215 GROSS HP @ 2,200 RPM this code has more than one documented meaning — filter by year 1999 GM sourced
LPF FAMILY CODE, LICENSE PLATE FRONT, 10508 — Provisional
LPG C, PROVISIONS, LIQUID PROPANE GAS (LP GAS) this code has more than one documented meaning — filter by year 1998 GM sourced
LPH P, ENG, M, ENGINE, DIESEL, 4 CYL, 2.2L, L4, TURBO-HIGH, HO, OHC 1999 GM sourced
LPI P, ENG, M, ENGINE, GAS, 4 CYL, 2.0L, MFI, TURBO, DOHC, OPEL 1999 GM sourced
LPJ P, PWO, M, POWER OPTION, MWM 6.07, 4.2L, 155 GROSS HP, @ 3,400 RPM, 10312 E, 5 — Provisional
LPK P, PWO, M, POWER OPTION, DURAMAX, 7.8L, 275 GROSS HP @ 2,200 RPM HIGH TORQ, 10904 — GM sourced
LPL P, ENG, M, ENGINE, DIESEL, 4 CYL, 1.7L, L4, CRI, TURBO-HIGH, HO, DOHC, 1019 — GM sourced
LPM P, ENG, M, ENGINE, DIESEL, 4 CYL, 1.9L, L4, CRI, SOHC, TURBO, 1121 — GM sourced
LPN P, PWO, M, POWER OPTION, CATERPILLAR 3126, 7.2L, 216 GROSS H.P. @ 2,400 RPM520 FT. LB., 10312 — GM sourced
LPR P, PWO, M, POWER OPTION, CATERPILLAR 3126, 7.2L, 190 GROSS H.P. @ 2,400 RPM, 10312 — GM sourced
LPS P, PWO, M, POWER OPTION, DURAMAX, 7.8L, 195 GROSS HP @ 2,200 RPM, 10604 — GM sourced
LPT P, PWO, M, POWER OPTION, DURAMAX, 7.8L, 215 GROSS HP @ 2,200 RPM, HIGH TORQ, 10604 — GM sourced
LPU P, PWO, M, POWER OPTION, DURAMAX, 7.8L, 215 GROSS HP @ 2,200 RPM, LOW TORQ, 10604 — GM sourced
LPY P, ENG, M, ENGINE, DIESEL, 6 CYL, 8.2L, DI, L6, OHC, 147KW, 1SUZU, 10214 — Provisional
LPZ P, ENG, M, ENGINE, DIESEL, 4 CYL, 1.7L, L4, CRI, TURBO-HIGH, DOHC, 10629 E, 0 — Provisional
LQ0 P, ENG, M, ENGINE, GAS, 4 CYL, 2.6L, MFI, ISUZU this code has more than one documented meaning — filter by year 1993 GM sourced
LQ1 P, ENG, M, ENGINE, GAS, 6 CYL, 3.4L, MFI, V6, HO, DOHC 1998 GM sourced
LQ2 P, ENG, M, ENGINE, GAS, 4 CYL, 2.0L, MFI this code has more than one documented meaning — filter by year 1987 GM sourced
LQ3 P, ENG, M, ENGINE, GAS, 6 CYL, 2.6L, MFI, V6, DOHC, GM 1999 GM sourced
LQ4 6.0-liter iron-block V8 gasoline engine 2007 GM sourced
LQ5 P, ENG, M, ENGINE, GAS, 4 CYL, 1.4L, MFI, OHC this code has more than one documented meaning — filter by year 1994 GM sourced
LQ6 P, ENG, M, ENGINE, GAS, 6 CYL, 3.2L, SFI, TWIN TURBO, ALUM, 60 DEGREE, GM, 20109 — GM sourced
LQ7 P, ENG, M, ENGINE, GAS, 4 CYL, 1.3L, MFI, DOHC, PORT DEACTIVATION, 121 E, 0 — GM sourced
LQ8 P, ENG, M, ENGINE, GAS, 4 CYL, 2.0L, MFI, L4, TURBO-LOW, ALUM, DOHC, SAAB, 920 — GM sourced
LQ9 high-output 6.0-liter iron-block V8 gasoline engine 2007 GM sourced
LQA P, PWO, M, POWER OPTION, CATERPILLAR 3126, 7.2L, 207 GROSS H.P. @ 2,300 RPM, 10312 — GM sourced
LQB P, PWO, M, POWER OPTION, DURAMAX, 7.8L, 200 GROSS HP @ 2,200 RPM this code has more than one documented meaning — filter by year 1999 GM sourced
LQC P, PWO, M, POWER OPTION, DURAMAX, 7.8L, 230 GROSS HP @ 2,200 RPM this code has more than one documented meaning — filter by year 1999 GM sourced
LQD P, PWO, M, POWER OPTION, GMPT V8, 8.1L, 370 NET HP @ 4,400 RPM, 825 — Provisional
LQE P, PWO, M, POWER OPTION, GMPT V8, 8.1L, 415 NET HP @ 5,000 RPM, 825 — Provisional
LQF P, PWO, M, POWER OPTION, DURAMAX, 6.6L, 300HP/860LB FT @ 2200 RPM, 20610 — GM sourced
LQG Power Option Caterpillar 230 Gross H.p., Low Torque — Reference
LQH P, PWO, M, POWER OPTION, DURAMAX, 7.8L, 275 GROSS HP @ 2,200 RPM, 10904 — GM sourced
LQK P, PWO, M, POWER OPTION, DURAMAX, 7.2L, 190 GROSS HP @ 2,400 RPM, 10312 — Provisional
LQL P, PWO, M, POWER OPTION, DURAMAX, 7.2L, 210 GROSS HP @ 2,400 RPM., 10312 — Provisional
LQM P, PWO, M, POWER OPTION, GMPT V8, 6.5L, 175 GROSS HP @ 2,800 RPM 1998 GM sourced
LQN P, PWO, M, POWER OPTION, GMPT V8, 6.5L, 190 GROSS HP @ 2,800 RPM 1998 GM sourced
LQQ P, PWO, M, POWER OPTION, GMPT V8, 8.1L, 210 NET HP @ 3,800 RPM this code has more than one documented meaning — filter by year 1999 GM sourced
LQR P, PWO, M, POWER OPTION, GMPT V8, 8.1L, 225 NET HP @ 3,600 RPM, 10312 this code has more than one documented meaning — filter by year — GM sourced
LQS Engine,diesel,3.9l(3.9l),cummins 4bt this code has more than one documented meaning — filter by year — Reference
LQT Power Option Isuzu 7.1l,230 Gross HP @ 2600 Rpm — Reference
LQV P, PWO, M, POWER OPTION, CATERPILLAR 3126, 7.2L, 250 GROSS H.P. @ 2,200 RPM this code has more than one documented meaning — filter by year 1998 GM sourced
LQW P, PWO, M, POWER OPTION, CATERPILLAR 3126, 7.2L, 275 GROSS H.P. @ 2,200 RPM this code has more than one documented meaning — filter by year 1998 GM sourced
LQX P, PWO, M, POWER OPTION, CATERPILLAR 3126, 7.2L, 300 GROSS H.P. @ 2,200 RPM this code has more than one documented meaning — filter by year 1998 GM sourced
LQY P, PWO, M, POWER OPTION, GMPT V8, 8.1L, 270 NET HP @ 3,800 RPM this code has more than one documented meaning — filter by year 1998 GM sourced
LQZ P, PWO, M, POWER OPTION, CATERPILLAR 3116, 6.6L, 230 GROSS HP @ 2,600 RPM this code has more than one documented meaning — filter by year 1998 GM sourced
LR0 Engine,7.0l,gas,8 Cyl — Reference
LR1 P, ENG, M, ENGINE, NATURAL GAS, 4 CYL, 1.6L, MFI, DOHC, 1122 E, 0 — GM sourced
LR2 P, ENG, M, ENGINE, GAS, 6 CYL, 3.4L, SFI, V6, HO, GM this code has more than one documented meaning — filter by year 1999 GM sourced
LR3 P, ENG, M, ENGINE, ALCOHOL, 4 CYL, 1.8L, MFI, L4, BRA 1996 Provisional
LR4 4.8-liter iron-block V8 gasoline engine 2007 GM sourced
LR5 P, ENG, M, ENGINE, GAS, 6 CYL, 3.0L, MFI, TURBO-LOW, DOHC, OPEL 1998 Provisional
LR6 P, ENG, M, ENGINE, DIESEL, 4 CYL, 1.7L, L4, DI, TURBO-HIGH, HO, DOHC,ISUZU 1999 GM sourced
LR7 P, ENG, M, ENGINE, GAS, 4 CYL, 2.0L, GDI, L4, TURBO, ALUM, DOHC, SCC,SAAB, 608 — Provisional
LR8 P, ENG, M, ENGINE, GAS, 4 CYL, 1.5L, MFI, DOHC, ALUM, SUZUKI-M15A, 11024 — GM sourced
LR9 P, ENG, M, ENGINE, GAS, 4 CYL, 2.0L, 2BBL 1992 GM sourced
LRB P, ENG, M, ENGINE, DIESEL, 4 CYL, 1.7L, L4, CRI, TURBO-LOW, DOHC, 10629 E, 0 — GM sourced
LRC P, ENG, M, ENGINE, DIESEL, 4 CYL, 1.7L, L4, CRI, TURBO, DOHC,, 10629 E, 0 — Provisional
LRD P, ENG, M, ENGINE, DIESEL, 4 CYL, 1.9L, L4, CRI, TURBO, HO, DOHC, 20301 E, 0 — GM sourced
LRE P, ENG, M, ENGINE, DIESEL, 4 CYL, 2.2L, L4, TURBO DI, SOHC,, REDUCED OUTPUT, 10904 E, 0 — Provisional
LRF P, ENG, M, ENGINE, GAS, 4 CYL, 1.8L, DI, DOHC, REDUCED OUTPUT, 10828 E, 0 — Provisional
LRK P, PWO, M, POWER OPTION, DURAMAX, 6.6L, 210 GROSS HP @ 2,750 RPM, 10312 — GM sourced
LRM P, PWO, M, POWER OPTION, DURAMAX, 6.6L, 300 GROSS HP @ 3,250 RPM, 10312 — GM sourced
LRP P, PWO, M, POWER OPTION, GMPT V8, 8.1L, 300 NET HP @ 3,800 RPM this code has more than one documented meaning — filter by year 1998 GM sourced
LRQ P, PWO, M, POWER OPTION, CATERPILLAR 3126, 7.2L, 210 GROSS H.P. @ 2,200 RPM(HIGH TORQUE) this code has more than one documented meaning — filter by year 1998 GM sourced
LRR P, PWO, M, POWER OPTION, CATERPILLAR 3126, 7.2L, 250 GROSS H.P. @ 2,200 RPM(HIGH TORQUE) this code has more than one documented meaning — filter by year 1998 GM sourced
LRS P, PWO, M, POWER OPTION, CATERPILLAR 3126, 7.2L, 275 GROSS H.P. @ 2,200 RPM(HIGH TORQUE) this code has more than one documented meaning — filter by year 1998 GM sourced
LRT P, PWO, M, POWER OPTION, CATERPILLAR 3126, 7.2L, 300 GROSS H.P. @ 2,200 RPM(HIGH TORQUE) this code has more than one documented meaning — filter by year 1998 GM sourced
LRU P, PWO, M, POWER OPTION, CATERPILLAR 3116, 6.6L, 275 GROSS HP @ 2,450 RPM this code has more than one documented meaning — filter by year 1998 GM sourced
LRW P, PWO, M, POWER OPTION, GMPT V8, 8.1L, 325 NET HP @ 4,000 RPM, 10312 — GM sourced
LRX P, PWO, M, POWER OPTION, DURAMAX, 6.6L, 300 GROSS HP @ 3000 RPM, 20226 — GM sourced
LRY P, PWO, M, POWER OPTION, DURAMAX, 6.6L, 210 GROSS HP @ 2750 RPM,TORQ 1600, 20226 — GM sourced
LRZ P, PWO, M, POWER OPTION, GMPT V8, 8.1L, 295 NET HP @ 3,600 RPM, 10312 — GM sourced
LS0 Engine,v8,6.0l — Reference
LS1 P, ENG, M, ENGINE, GAS, 8 CYL, 5.7L, SFI, ALUM, GM this code has more than one documented meaning — filter by year 1996 GM sourced
LS2 P, ENG, M, ENGINE, GAS, 8 CYL, 6.0L, SFI, ALUM, GM, 10315 — GM sourced
LS3 Engine Gas, 8 Cyl, 6.2l, Sfi, Alum, Ho, GM this code has more than one documented meaning — filter by year — Reference
LS4 P, ENG, M, ENGINE, GAS, 8 CYL, 5.3L, SFI, ALUM, CYLINDER DEACTIVATIONGM, 1031 — GM sourced
LS5 Engine,1.6l(1.6u),4 Cyl In-line,tbi,ohc,tracker Suzuki,98cid,gas — Reference
LS6 P, ENG, M, ENGINE, GAS, 8 CYL, 5.7L, SFI, ALUM, HO, GM, 125 — GM sourced
LS7 P, ENG, M, ENGINE, GAS, 8 CYL, 6.4L, SFI, ALUM, HO, GM, 718 — GM sourced
LS8 Engine,151 C.i.d.),l4,2bbl. — Reference
LS9 350 cu in V8 gasoline engine 1973 GM sourced
LSA Engine Dress Kit, Ups Retrofit this code has more than one documented meaning — filter by year — Reference
LSG P, PWO, M, POWER OPTION, DURAMAX, 7.2L, 210 GROSS HP @ 2,400 RPM 1998 GM sourced
LSH P, PWO, M, POWER OPTION, DURAMAX, 6.6L, 250 GROSS HP @ 3,750 RPM 1998 GM sourced
LSJ P, ENG, M, ENGINE, GAS, 4 CYL, 2.0L, MFI, L4, DOHC, SC, ALUM, GM, 20903 — GM sourced
LSL P, ENG, M, ENGINE, GAS, 8 CYL, 5.3L, MFI, IRON, HO, GM, 20911 — Provisional
LSM Power Option Gmpt V10, 7.5l, 330 Net HP @ 4, 000 Rpm — Reference
LST Engine Gas, 8 Cyl, 6.2l, Sfi, Alum, Intr Clr Sc, GM this code has more than one documented meaning — filter by year — Reference
LSU Engine,3.9l(3.9m),diesel,4 Cyl Cummins(turbo) — Reference
LSV P, PWO, M, POWER OPTION, CATERPILLAR 3126, 7.2L, 175 GROSS H.P. @ 2,200 RPM this code has more than one documented meaning — filter by year 1998 GM sourced
LSW P, PWO, M, POWER OPTION, CATERPILLAR 3126, 7.2L, 190 GROSS H.P. @ 2,200 RPM this code has more than one documented meaning — filter by year 1998 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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