- 1975 Single-source
YC9 Factory-verified
Also described as Processing option
Documented applications
- 1992, 1994 Factory-verified
1992: 4-door models only
GM Heritage factory kit — 1992 Chevrolet S 10 Blazer, p.20.GM Heritage factory kit — 1994 Chevrolet S 10 Blazer, p.52.
This page aggregates every documented appearance of YC9 in the Chevrolet reference. Confidence and citations are shown per application — the same code can be better documented in one year than another.