General Motors option code
UM2
UM2: a General Motors factory option code reused for more than one part across 1970–1982 and 6 models — 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.
6 models · 13 model years · 10 sources
Every sourced appearance
| Year | Model | As named that year | Price | Installs |
|---|---|---|---|---|
| 1970 | Chevrolet Chevelle and Malibu SS | AM/FM Push Button Radio & Tape Player RPO | $372.85 | 4,532 Reported |
| 1971 | Chevrolet Chevelle and Malibu SS | AM/FM Push Button Radio & Tape Player RPO | $372.85 | 3,923 Reported |
| 1972 | Chevrolet Chevelle and Malibu SS | AM/FM Push Button Radio & Tape Player RPO | $382.35 | 7,403 Reported |
| 1973 | Chevrolet Chevelle and Malibu SS | Stereo tape with stereo radio RPO | Unknown | 22,193 Reported |
| 1973 | Pontiac Tempest and LeMans | AM/FM stereo radio with 8-track tape player RPO | $363 | Unknown |
| 1974 | Chevrolet Chevelle and Malibu SS | Stereo tape with AM/FM stereo radio RPO | $363 | Unknown |
| 1975 | Chevrolet Chevy II and Nova | Stereo tape system with AM/FM stereo radio RPO | $363 | Unknown |
| 1976 | Chevrolet Chevy II and Nova | Stereo tape system with AM/FM stereo radio RPO | $324 | Unknown |
| 1976 | Chevrolet El Camino SS | Stereo tape system with AM/FM stereo radio RPO | $324 | Unknown |
| 1977 | Chevrolet Chevelle and Malibu SS | Stereo tape with AM/FM stereo RPO | $324 | Unknown |
| 1977 | Chevrolet Chevy II and Nova | Stereo tape system with AM/FM stereo radio RPO | $324 | Unknown |
| 1977 | Chevrolet El Camino SS | Stereo tape with AM/FM stereo radio RPO | $324 | Unknown |
| 1977 | Pontiac Tempest and LeMans | AM/FM stereo radio with stereo 8-track tape player RPO | Unknown | Unknown |
| 1978 | Chevrolet Chevy II and Nova | Stereo tape system with AM/FM stereo radio RPO | $328 | Unknown |
| 1978 | Chevrolet El Camino SS | Stereo tape with AM/FM stereo radio RPO | $328 | Unknown |
| 1978 | Pontiac Firebird and Trans Am | Radio, AM/FM Stereo & Stereo 8 Tape Player RPO/UPC | $341 | Unknown |
| 1979 | Buick Riviera | 8 Track & AM/FM Stereo Radio order code (Buick option code) | $110 | Unknown |
| 1979 | Chevrolet Chevy II and Nova | AM radio with 8-track stereo tape system RPO | $335 | Unknown |
| 1979 | Chevrolet El Camino SS | AM/FM stereo with 8-track RPO | $335 | Unknown |
| 1980 | Buick Riviera | 8 Track Tape & AM/FM Stereo Radio order code (Buick option code) | $81 | Unknown |
| 1980 | Chevrolet El Camino SS | AM/FM stereo with 8-track RPO | $272 | Unknown |
| 1980 | Pontiac Firebird and Trans Am | Radio, AM/FM Stereo & Integral Stereo 8 Track Tape Player RPO/UPC | $272 | Unknown |
| 1981 | Buick Riviera | 8 Track & AM/FM Stereo Radio order code (Buick option code) | $74 | Unknown |
| 1981 | Chevrolet El Camino SS | AM/FM stereo with 8-track RPO | $252 | Unknown |
| 1981 | Pontiac Firebird and Trans Am | Radio, AM/FM Stereo & Integral Stereo 8 Track Tape Player RPO/UPC | $252 | Unknown |
| 1982 | Chevrolet El Camino SS | AM/FM stereo with 8-track RPO | $282 | Unknown |
Every row traces to the source it links from on that model's own year page; this table only collects them in one place.