D1A ✓ Factory-verified

Chevrolet · Regular Production Option

Gear, speedometer driven (25513042)

Years 1993 Models 1 Factory citations 1

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Documented applications

Corvette — C4 (1984–1996) →

• 1993 ✓ Factory-verified internal

  the list prints DIA

  ⛭ GM Heritage factory kit — 1993 Chevrolet Corvette, p.17.

This page aggregates every documented appearance of D1A in the Chevrolet reference. Confidence and citations are shown per application — the same code can be better documented in one year than another.