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A Regular Production Option (RPO) is a 3-digit standardized code used by General Motors to designate vehicle options & modifications. RPO codes designate how a vehicle is built, and they've been used on dealership order forms and in assembly plants since at least the 1950s (see Corvette C1). It was originally all numeric and labeled Sales Codes; in 1970 GM switched to the alphanumeric RPO code.
Even base vehicles with few optional features will have multiple RPOs, since both standard components (like engine, transmission, and paint color) and extra cost options are assigned codes.
The complete configuration of a GM vehicle (as it exited the factory) can be described by specifying the base model and a complete list of its RPO codes.[1] Some dealerships are willing to run a VIN and print out its RPOs (with their definitions) free of charge. The records are in GMs' electronic database since at least the 1990 models. RPO decoder (for newer vehicles).
Beginning in (yr?), GM attached a Service Parts Identification (SPID) label in its vehicles, most often located on the back of the glovebox door OR in the trunk on the spare tire cover. The SPID lists all the RPOs built into that vehicle, in alphabetical order. These codes are sometimes needed during vehicle repairs to select the correct replacement parts. TECH TIP: Take a photo of the Vehicle Identification Number (VIN) and the SPID with you when purchasing auto parts. NOTE: Reproduction SPID labels may be purchased online from aftermarket vendors.
In 2018, the RPO Sticker was replaced by a QR code label located on the B-pillar (driver's side, between front and rear doors). While fairly complete, it does not contain every RPO that is on the vehicle.
^Whipps, Kevin (2018). How to Restore Your Chevy Truck 1973–1987. CarTech. p. 71. ISBN 978-1-61325-199-7.
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the Cadillac Northstar V8. First released to the public as a regularproductionoption for the 1988 Oldsmobile Cutlass Calais and Pontiac Grand Am, the...
the 1963 Chevrolet Impala Sport Coupe, ordered under Chevrolet RegularProductionOption (RPO) Z11. This was a special package created for drag racers...
compression. For 1965, Chevrolet added the 350-hp 327 V8 as a RegularProductionOption (RPO) L79. A total of 294,160 Chevelles were built in the first...
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Radio from the "up-level" IO5 and IO6 infotainment systems. A RegularProductionOption (RPO) Code of "AVF" in the upper glove compartment distinguishes...
received the Hurst T-tops. T-Tops became an regularproductionoption for other Firebirds in 1977. The Y82 option included exclusive black and gold decals...
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Top engine option was now a 350 hp (261 kW; 355 PS) 327 cu in (5.4 L) V8. 201 of the 1965 Malibu SS cars got RegularProductionOption (RPO) Z16, which...
developed. The Super Wildcat (RegularProductionOption {RPO}-coded Y48) was available on the 1964 Riviera as a factory option (2,122 produced), 1964 Electras...
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"Spyder" option for Monza coupes and convertibles, making the Corvair the second production automobile supplied with a turbocharger as a factory option, with...
Built under RegularProductionOption (RPO) B2K, the Callaway Twin Turbo Corvette was available through Chevrolet dealers as a factory option. Callaway...
of producing it, so the option was withdrawn after the 1976 model year. The ACRS system was coded as RegularProductionOption AR3. GM did not introduce...