GM RPO Code Database

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.

Code or description

Model year

Sourcing Any From a GM document Corroborated GM option master, dated General reference Provisional

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The full list, A to Z

Showing 701–777 of 777 codes beginning with R. One meaning shown per code — the best-sourced one we hold. Search above for the rest.

Code	Meaning	Years	Sourcing
RWW	Accessory Cargo Barrier, Interior	—	Reference
RWY	Accessory Park Brake Handle And Boot	—	Reference
RWZ	Accessory Cargo Hooks - Flexible Organizer - RR Compt	—	Reference
RX0	Accessory Brake Calipers	—	Reference
RX1	22 inch 7-spoke Silver wheels with Black inserts (LPO dealer-installed accessory)	2019	Reference
RX2	Accessory Cargo Stabilizer	—	Reference
RX4	Accessory Carrier, Bicycle, Interior Mounted	—	Reference
RX5	Accessory Carrier Bicycle, Roof Mounted	—	Reference
RX6	Accessory Carrier Bicycle, Trailer Hitch Mounted	—	Reference
RX7	Accessory Carrier, Canoe, Roof Mounted	—	Reference
RX8	Accessory Carrier, Hard Cargo, Roof Mounted	—	Reference
RX9	Accessory Carrier, Kayak, Roof Mounted	—	Reference
RXA	Accessory Carrier, Luggage, Soft, Roof Mounted	—	Reference
RXB	Accessory Carrier, Ski, Roof Mounted	—	Reference
RXC	Accessory Carrier, Ski, Trailer Hitch Mounted	—	Reference
RXD	Accessory Case, Headphone Storage	—	Reference
RXE	Accessory Catback/off-road Exhaust System	—	Reference
RXF	Accessory CD Changer Kit - Multi Stacking	—	Reference
RXG	Accessory CD Player Kit - Single	—	Reference
RXH	Black center caps (LPO dealer-installed accessory)	2026	GM sourced
RXI	Accessory Engine Cover - Alternate Finish	—	Reference
RXJ	Chrome center caps (LPO dealer-installed accessory)	2026	GM sourced
RXK	Accessory Charge Cord Management System, Retractable	—	Reference
RXL	Accessory Charging Cord - 110v	—	Reference
RXM	Accessory Child Seat - Age Group 0+	—	Reference
RXN	22 inch 7-spoke Silver wheels with Chrome inserts (LPO dealer-installed accessory)	2019	Reference
RXO	Accessory Clutch And Flywheel	—	Reference
RXP	Accessory Console, Floor	—	Reference
RXQ	Accessory Convenience Net, Bed Mounted	—	Reference
RXR	Accessory Cover, Headrest Dvd Player Security	—	Reference
RXS	Accessory Wheel Inserts - Design 3	—	Reference
RXU	Accessory Covers, Headlamp	—	Reference
RXX	Accessory Molding - RR License Opening Trim	—	Reference
RXZ	Accessory Cruise Control Kit	—	Reference
RY2	Accessory Decals/appliques	—	Reference
RY3	Accessory Docking Station, Navigation	—	Reference
RY4	Accessory Cargo Net - 3D - Flexible Organizer - RR Compt	—	Reference
RY7	Accessory Door Handles - Alternate Finish 1	—	Reference
RY8	Accessory Door Handles, Alternate Finish, Painted	—	Reference
RY9	Accessory Driver Information Center Kit	—	Reference
RYB	P, RYDER TRUCK RENTAL, WESTERN PACKAGE this code has more than one documented meaning — filter by year	1998	GM sourced
RYC	P, RYDER TRUCK RENTAL, CENTRAL PACKAGE this code has more than one documented meaning — filter by year	1998	GM sourced
RYD	P, RYDER TRUCK RENTAL, NORTHERN PACKAGE this code has more than one documented meaning — filter by year	1998	GM sourced
RYE	P, RYDER TRUCK RENTAL, NATIONAL PACKAGE this code has more than one documented meaning — filter by year	1998	GM sourced
RYG	P, PLT, R PLANT CODE, RAYONG, THAILAND	1998	GM sourced
RYH	Accessory Dvd Player System - Rse Headrest, Single, Upgradeable	—	Reference
RYI	Accessory Dvd Player System, Rse Overhead, Portable	—	Reference
RYJ	P, SHADE, CARGO AREA, RETRACTABLE this code has more than one documented meaning — filter by year	1997	GM sourced
RYK	Accessory Dvd Player System, Rse Seatback, Dual	—	Reference
RYL	P, CCL, R SECONDARY COLOR, EXTERIOR, YELLOW RYDER WE5445/CHARTS this code has more than one documented meaning — filter by year	1991	GM sourced
RYM	Accessory Dvd Player System - Rse Single	—	Reference
RYN	Accessory Exhaust Headers	—	Reference
RYQ	Accessory Exterior Trim Kit	—	Reference
RYR	P, RYDER TRUCK RENTAL	1998	GM sourced
RYS	Accessory Fire Extinguisher	—	Reference
RYT	Accessory First Aid Kit	—	Reference
RYU	P, CCU, M PRIMARY COLOR, EXTERIOR, YELLOW RYDER WE5445/CHARTS this code has more than one documented meaning — filter by year	1991	GM sourced
RYV	Accessory Floor Mats, Economy Carpet	—	Reference
RYX	Accessory Floor Mats, Molded Carpet	—	Reference
RYY	Accessory Floor Mats, Molded Vinyl	—	Reference
RZ1	Accessory Floor Mats, Velour	—	Reference
RZ2	Accessory Front End Cover	—	Reference
RZ3	Accessory Front Fascia Extension	—	Reference
RZ5	Accessory Stop Lamp	—	Reference
RZ6	Accessory Grille, Front Fender	—	Reference
RZ7	Accessory Grille, Rear Exhaust	—	Reference
RZ9	Grille, Black with Chrome surround and Black GMC emblem (LPO dealer-installed accessory)	2026	GM sourced
RZA	Wheel 19 X 7.5, J, Aluminum, Design 2	—	Reference
RZB	Black grille with Black bowtie emblem (LPO dealer-installed accessory)	2026	GM sourced
RZF	Wheel 18 X 8.0,alum,chrome Clad,5 Closed Spoke,g M C Flanged	—	Reference
RZG	Accessory Winter Wheel Pkg - 17' Steel	—	Reference
RZO	Accessory Wheel - 20' Aluminum, Design 9	—	Reference
RZS	Wheel 17 X 7.0, J, Aluminum, Design 8	—	Reference
RZT	Accessory Wheel - 20' - Aluminum - Design 7	—	Reference
RZV	Accessory Wheel - 19' Aluminum, Design 7	—	Reference
RZW	Accessory Harness, Trailer Hitch	—	Reference
RZY	Accessory Harness, Wiring	—	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.