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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 301–400 of 588 codes beginning with P. One meaning shown per code — the best-sourced one we hold. Search above for the rest.
| Code | Meaning | Years | Sourcing |
|---|---|---|---|
| PFD | P, WHL, M, WHEEL, 16 X 6, ALUMINUM, MACHINED FACE, 1220 E, 3 | — | GM sourced |
| PFE | P, WHL, M, WHEEL, 17 X 7, ALUMINUM, 1220 E, 1 | — | GM sourced |
| PFF | P, WHL, M, WHEEL, 17 X 7, ALUMINUM, PAINTED, 1220 E, 1 | — | GM sourced |
| PFG | P, WHL, M, WHEEL, 17 X 7, ALUMINUM, MACHINED, 1220 E, 1 | — | GM sourced |
| PFH | P, WHL, M, WHEEL, 17 X 6.5, ALUMINUM, MACHINED, 20621 E, 1 | — | GM sourced |
| PFI | Sales Package Pacific this code has more than one documented meaning — filter by year | — | Reference |
| PFK | P, SALES PACKAGE, EQUIPMENT-LINEA ROSSA, 10912 E, 0 | — | Provisional |
| PFL | P, SALES PACKAGE, EQUIPMENT-SPORTS, 10912 E, 0 | — | GM sourced |
| PFM | Trim Cloth, Alpha Elba Saturn Astra | — | Reference |
| PFP | Trim Cloth, W/piping | — | Reference |
| PFS | Wheel 17 X 7.5 Aluminum, Painted | — | Reference |
| PG0 | P, WHL, M, WHEEL, 16 X 6, ALUMINUM, STYLED | 1987 | GM sourced |
| PG1 | P, WHL, M, WHEEL, 15 X 6, STEEL this code has more than one documented meaning — filter by year | 1986 | GM sourced |
| PG2 | P, WHL, M, WHEEL, 15 X 5.5, STEEL | 1987 | GM sourced |
| PG3 | P, WHL, M, WHEEL, 15 X 6, ALUMINUM, 5 SPOKES (LMA) | 1998 | GM sourced |
| PG4 | P, WHL, M, WHEEL, 14 X 5.5, ALUMINUM this code has more than one documented meaning — filter by year | 1986 | GM sourced |
| PG5 | P, WHL, M, WHEEL, 15 X 6, ALUMINUM CAST | 1988 | GM sourced |
| PG6 | P, WHL, M, WHEEL, 15 X 6, ALUMINUM, 6 SPOKES (LMA) | 1997 | Provisional |
| PG7 | P, WHL, M, WHEEL, 14 X 5.5, ALUMINUM, 16 SPOKES (LMA) | 1997 | Provisional |
| PG8 | P, WHL, M, WHEEL, 14 X 5.5, ALUMINUM, 8 SPOKE (LMA) this code has more than one documented meaning — filter by year | 1997 | GM sourced |
| PG9 | P, WHL, M, WHEEL, 15 X 6, ALUMINUM (LMA) this code has more than one documented meaning — filter by year | 1997 | GM sourced |
| PGA | P, WHL, M, WHEEL, 15 X 6.5, ALUMINUM, CUSTOM | 1998 | GM sourced |
| PGC | P, WHL, M, WHEEL, 16 X 6, ALUMINUM, 7 SPOKES | 1998 | Provisional |
| PGD | P, WHL, M, WHEEL, 15 X 6, ALUMINUM, 7 SPOKES, CUSTOM, 20731 E, 0 | — | Provisional |
| PGF | Wheel 17 X 7, Aluminum, Black Chrome, Flanged | — | Reference |
| PGI | Wheel 17 X 7, Aluminum, 5 Spoke Twin, Saab Alu79 | — | Reference |
| PGK | Wheel 18 X 8, Aluminum, Chrome, 14 Spokes | — | Reference |
| PGL | Wheel 18 X 7 Painted With Machined Face | — | Reference |
| PGQ | Wheel 17 X 7, Aluminium, Design 14 | — | Reference |
| PGW | Wheel 20 X 8, Aluminum, Painted | — | Reference |
| PH0 | P, WHL, M, WHEEL, 15 X 5.5, ALUMINUM, 6 SPOKES, STYLED (LMA) | 1997 | GM sourced |
| PH1 | P, WHL, M, WHEEL, 15 X 7, STEEL this code has more than one documented meaning — filter by year | 1984 | GM sourced |
| PH2 | P, WHL, M, WHEEL, 16 X 7, ALUMINUM, CHROME this code has more than one documented meaning — filter by year | 1992 | GM sourced |
| PH3 | P, WHL, M, WHEEL, 15 X 6, ALUMINUM CAST, 115MM BOLT CIRCLE this code has more than one documented meaning — filter by year | 1983 | GM sourced |
| PH4 | P, WHL, M, WHEEL, 14 X 5, ALUMINUM (LMA) | 1997 | Provisional |
| PH5 | P, WHL, M, WHEEL, 15 X 6, ALUMINUM, 10 SPOKES (LMA), 309 E, 0 | — | GM sourced |
| PH6 | P, WHL, M, WHEEL, 15 X 6, ALUMINUM this code has more than one documented meaning — filter by year | 1986 | GM sourced |
| PH7 | P, WHL, M, WHEEL, 16 X 6, ALUMINUM, SPORT | 1992 | GM sourced |
| PH8 | Wheel,15x6,wire Spoke | — | Reference |
| PH9 | P, WHL, M, WHEEL, 15 X 6, ALUMINUM CAST, 5 STUD this code has more than one documented meaning — filter by year | 1997 | GM sourced |
| PHA | P, IDT, M, TRIM, CLOTH/VINYL, STANDARD, VAR 1, 21107 E, 5 | — | GM sourced |
| PHB | P, IDT, M, TRIM, CLOTH/VINYL, DELUXE, 21107 E, 5 | — | GM sourced |
| PHC | P, IDT, M, TRIM, CLOTH/VINYL, DELUXE, VAR 1, 21107 E, 5 | — | GM sourced |
| PHD | P, IDT, M, TRIM, CLOTH/VINYL, SUPER DELUXE, VAR 1, 21107 E, 5 | — | Provisional |
| PHE | P, IDT, M, TRIM, CLOTH/VINYL, SUPER DELUXE, VAR 2, 21107 E, 5 | — | Provisional |
| PHF | P, IDT, M, TRIM, CLOTH/VINYL, ULTRA-DELUXE, 21107 E, 5 | — | Provisional |
| PHP | Trim Cloth, Tabita / Elba | — | Reference |
| PHQ | Opel Cloth Alph/ Elba Silver Saturn Astra | — | Reference |
| PI2 | P, NPC, M, CONVERSION NAME PLT, "LEGO", 1122 E, 0 | — | Provisional |
| PI3 | P, SALES PACKAGE, CAMPAIGN-COLOR EDITION, 10313 E, 0 | — | Provisional |
| PI4 | P, SALES PACKAGE, CAMPAIGN-COLOR EDITION III, 20320 E, 0 | — | Provisional |
| PI5 | P, CND, R, CONVENIENCE PKG, VERSION 1, 20320 E, 0 | — | Provisional |
| PI6 | P, CND, R, CONVENIENCE PKG, VERSION 2, 20320 E 0 | — | Provisional |
| PI7 | P, CND, R, CONVENIENCE PKG, VERSION 3, 20320 E 0 | — | Provisional |
| PI8 | P, CND, R, CONVENIENCE PKG, VERSION 4, 20320 E 0 | — | Provisional |
| PI9 | P, SALES PACKAGE, CAMPAIGN-HARIBO EDITION, 21101 E 0 | — | Provisional |
| PIA | P, FIN, R, FLEET INCENTIVE, MPW INDUSTRIAL SERVICES, INC. (J/W-TRK CKGST), 21022 | — | Provisional |
| PIB | P, FIN, R, FLEET INCENTIVE, INTEGRIS METALS (W-TRK CKST), 21030 | — | Provisional |
| PIC | P, FIN, R, FLEET INCENTIVE, HARMON AUTO GLASS (TRK G), 21022 | — | Provisional |
| PID | P, FIN, R, FLEET INCENTIVE, GREATER ALARM (N/W-TRK CKGMLST), 21022 | — | Provisional |
| PIE | P, FIN, R, FLEET INCENTIVE, E.A. SWEEN COMPANY (U/W-TRK CKST), 21022 | — | Provisional |
| PIF | P, FIN, R, FLEET INCENTIVE, BUDCO COMPANIES (W-TRK CKG), 21022 | — | Provisional |
| PIH | P, FIN, R, FLEET INCENTIVE, SAUER INTERNATIONAL UNION (TRK CKG), 21022 | — | Provisional |
| PII | P, FIN, R, FLEET INCENTIVE, OSMONICS, INC. (H/U/W-TRK G), 21023 | — | Provisional |
| PIJ | P, FIN, R, FLEET INCENTIVE, DOMINICAN SISTERS OF ADRIAN (J/N/U/W-TRK GML), 21023 | — | Provisional |
| PIK | P, FIN, R, FLEET INCENTIVE, ELI LILLY PHARMACEUTICALS (B/C/J/N/S/U/V/W-TRK CK GST), 21023 | — | Provisional |
| PIM | P, FIN, R, FLEET INCENTIVE, METSO USA, INC. (W-TRK CKST), 21024 | — | Provisional |
| PIO | P, FIN, R, FLEET INCENTIVE, CARTER AND BURGESS, INC. (W-TRK CK), 21024 | — | Provisional |
| PIP | P, FIN, R, FLEET INCENTIVE, TENNANT COMPANY (U/W-TRK CKG), 21025 | — | Provisional |
| PIQ | P, FIN, R, FLEET INCENTIVE, ON COMMAND (TRK ML), 21024 | — | Provisional |
| PIR | P, FIN, R, FLEET INCENTIVE, BURKHART DENTAL SUPPLY CO. (W-TRK CKGML), 21025 | — | Provisional |
| PIU | P, FIN, R, FLEET INCENTIVE, THE WALT DISNEY COMPANY (B/H/K/N/U/V/W-TRK CKGST), 21025 | — | Provisional |
| PIV | P, FIN, R, FLEET INCENTIVE, AMERICAN INFRASTRUCTURE (J/U/W-CKG), 21028 | — | Provisional |
| PIW | P, FIN, R, FLEET INCENTIVE, CONTINENTAL TIRE COMPANY (H/J/K/N/U/W-TRK CKGMLST), 21028 | — | Provisional |
| PIX | P, FIN, R, FLEET INCENTIVE, HICKORY SPRINGS MANUFACTURING (H/J/K/N/U/W-TRK CKGMLST), 21028 | — | GM sourced |
| PIY | P, FIN, R, FLEET INCENTIVE, NVR BUILDING PRODUCTS (H/J/K/N/U/W-TRK CKGMLST), 21028 | — | Provisional |
| PJ2 | Wheel 19 X 8.5, Aluminum, Polished | — | Reference |
| PJ4 | Wheel 20 X 8.5, Aluminum, Clad | — | Reference |
| PJE | Wheel 17 X 7.0, J, Aluminum, Design 10 | — | Reference |
| PK2 | G78 X 14 WHITE STRIPE TIRE | — | Provisional |
| PK4 | G70 X 14 RED STRIPE TIRE | — | Provisional |
| PL2 | E78 X 15 BLACKWALL TIRE | — | Provisional |
| PL3 | E78 X 14 WHITE STRIPE TIRE | — | Provisional |
| PL5 | Power Level Performance Decrease Level 1 | — | Reference |
| PLA | Appearance Package Platinum Edition | — | Reference |
| PLT | Family Code, Plant Code | 1988 | GM dated |
| PLY | Equipment Pulley, 57mm | — | Reference |
| PM1 | Wheel,13 X 4.5j,steel | — | Reference |
| PM6 | G78 X 14 WHITE STRIPE TIRE | — | Provisional |
| PM7 | F60 X 15 WHITE LETTER TIRE | — | Provisional |
| PMA | Control Seat, Manual Cushion Extn, LH | — | Reference |
| PMB | Control Seat, Manual Cushion Extn, RH | — | Reference |
| PN5 | 7.75 X 14 8 PLY TIRE | — | Provisional |
| PNA | P, PANEL, TRIM, FRT DOORS this code has more than one documented meaning — filter by year | 1993 | GM sourced |
| PNB | P, WHL, M, WHEEL, ALUMINUM, POLISHED, BOTH SIDES, RR this code has more than one documented meaning — filter by year | 1996 | GM sourced |
| PNC | P, PANEL, TRIM, FRT DOORS & SI RR DOOR(S) & RR DOORS this code has more than one documented meaning — filter by year | 1993 | GM sourced |
| PND | P, PANEL, TRIM SI RR DOOR(S) & RR DOORS, 11012 | — | GM sourced |
| PNE | Panel Trim, Pillar (a, B), Lower | — | Reference |
| PNF | P, PANEL, TRIM, SIDE RR DOOR(S) & RR DOORS - DELETE | 1998 | GM sourced |
| PNG | Panel Trim, Pillar (a, B, C), Lower | — | Reference |
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.