"B" trim suffix / A51 (B) ◑ Single-source

Cadillac · Regular Production Option

Bucket seats (Strato from '69)

Years 1967–70 Models 1

Documented applications

Eldorado →

• 1967–70 ◑ Single-source

  Eldorado only; RPO A51 from 1969

This page aggregates every documented appearance of "B" trim suffix / A51 (B) in the Cadillac reference. Confidence and citations are shown per application — the same code can be better documented in one year than another.