YB1 ✓ Factory-verified

Cadillac · Regular Production Option

Plate, engine identification

Years 2006 Models 1 Factory citations 1

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Documented applications

STS — Sigma (2005–2011) →

• 2006 ✓ Factory-verified internal
  ⛭ GM factory document — 2006 cadillac sts rpo code list, p.1.

This page aggregates every documented appearance of YB1 in the Cadillac reference. Confidence and citations are shown per application — the same code can be better documented in one year than another.