General Motors option code
U03
U03: a General Motors factory option code reused for more than one part across 1965–1968 and 2 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.
2 models · 4 model years · 4 sources
Every sourced appearance
| Year | Model | As named that year | Price | Installs |
|---|---|---|---|---|
| 1965 | Chevrolet Chevelle and Malibu SS | Low note horn RPO | $14 | 5,461 Reported |
| 1965 | Chevrolet Chevy II and Nova | Tri-Volume horn RPO | $13.70 | Unknown |
| 1966 | Chevrolet Chevelle and Malibu SS | Tri-Volume Horn RPO | $13.70 | 2,653 Reported |
| 1966 | Chevrolet Chevy II and Nova | Low D-note horn (115-116-117-11800) RPO | Unknown | Unknown |
| 1967 | Chevrolet Chevelle and Malibu SS | Tri-Volume horn - n/a on 300 or 300 Deluxe. RPO | $13.70 | 1,191 Reported |
| 1968 | Chevrolet Chevelle and Malibu SS | Tri-Volume horn RPO | $13.70 | 1,125 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.