GMC

Legacy · parts only

The TopKick and its Chevy Kodiak twin were the medium-duty kings of their era — still everywhere on the used market.

General Motors Detroit, Michigan Est. 19121 models
GMC TopKick C4500–C8500
Class 4–8

TopKick C4500–C8500

The medium-duty legend GM retired in 2009.

Medium-DutyUp to 330 hp1990–2009
Specs & diagnosis