Heater, air conditioner duct, rear passenger

Years 1984, 1989, 2023–27 Models 3 Factory citations 7

Query this via API →

Also described as Cutaway van, heavy dutyGVW rating, 10,500 lb

Also documented for GMC

Documented applications

Colorado — Third generation (2023–2027)

2023–2027 Factory-verified

S on all trims

GM factory document — 2023 chevrolet 23colorado electrical body builder, p.10.
GM factory document — 2024 chevrolet 24colorado electrical body builder manual 18272478 2023oct09, p.11.
GM factory document — 2025 chevrolet colorado fleet order guide, p.27.
GM factory document — 2026 chevrolet colorado fleet order guide, p.31.
GM factory document — 2027 chevrolet colorado fleet order guide, p.31.

Chevy Van — Second generation G-series (1983–1996)

1984 Factory-verified

the 1984 model table lists the G31603 H.D. cutaway as ZW9 and C7C; the merged motorhome-chassis doc reads C7C as a 10,500 lb GVW rating; 1984 from the 1984 data book pages in the kit file labelled 1985.

GM Heritage factory kit — 1985 Chevrolet G Van, p.79.

Motor Home chassis (1983–1998)

1989 Factory-verified

GM Heritage factory kit — 1989 Chevrolet Motorhome, p.3.

This page aggregates every documented appearance of C7C in the Chevrolet reference. Confidence and citations are shown per application — the same code can be better documented in one year than another.