YE9 ● Confirmed

Chevrolet · Regular Production Option

Top trim: Cheyenne Super (73–74), Silverado (75–82)

Years 1971–82 Models 1

Also described as Cheyenne Super

Documented applications

C/K Trucks →

• 1971–72 ● Confirmed

  Top trim above Cheyenne

• 1973–82 ● Confirmed

  GMC: Sierra Grande → Sierra Classic

This page aggregates every documented appearance of YE9 in the Chevrolet reference. Confidence and citations are shown per application — the same code can be better documented in one year than another.