Pump, coolant, auxiliary

Years 1963–79, 2000 Models 2 Factory citations 1

Query this via API →

Also described as Dual action tailgate

Also documented for Oldsmobile Pontiac

Documented applications

Impala / Full-Size

1963–70s (varies) Single-source

Venture — U-body minivan (1997–2005)

2000 Factory-verified

the list prints "Auxillary"

GM factory document — 2000 chevrolet venture ext rpo code list, p.1.

This page aggregates every documented appearance of C28 in the Chevrolet reference. Confidence and citations are shown per application — the same code can be better documented in one year than another.