General Motors option code

W74

W74: a General Motors factory option code reused for more than one part across 1970–1996 and 1 model — see the table for what it named each year, with installs and price where a source states them.

General Motors reused this code for more than one part over the years — read the "as named that year" column for what it meant on each row rather than assuming one meaning throughout.

1 model · 3 model years · 3 sources

White 1970 Pontiac Firebird Trans Am with blue hood stripe, shaker hood scoop and Trans Am fender script, front three-quarter at a street car show
1970 Pontiac Firebird Trans Am in Polar White with the blue stripe Photo: Mustang Joe, CC0, via Wikimedia Commons

Every sourced appearance

Year Model As named that year Price Installs
1970 Pontiac Firebird and Trans Am Warning Lamp Group (sales code 652) RPO/UPC $36.86 Unknown
1971 Pontiac Firebird and Trans Am Warning/ Clock Lamps (sales code 652) RPO/UPC $42.13 Unknown
1996 Pontiac Firebird and Trans Am Vert Radio - Opt K RPO Unknown 81 Reported

Every row traces to the source it links from on that model's own year page; this table only collects them in one place.