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
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.