- 1989 Factory-verified
only in: sedan (1BL69), special equipment option (SEO); law enforcement agencies only
GM Heritage factory kit — 1989 Chevrolet Caprice, p.64.
7Z9 Factory-verified
Also described as Speedometer, police type
Documented applications
- 1998–1999 Factory-verified
This page aggregates every documented appearance of 7Z9 in the Chevrolet reference. Confidence and citations are shown per application — the same code can be better documented in one year than another.