63B ✓ Factory-verified

GMC · Regular Production Option

LPO, tonneau cover, tri-folding

Years 2019–20 Models 1 Factory citations 2

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Documented applications

Sierra — T1XX (2019–2026) →

• 2019–2020 ✓ Factory-verified
  ⛭ GM factory document — 2019 gmc 19 sierra 1500 body builder feb 20, p.9.

  ⛭ GM factory document — 2020 gmc 20 sierra 1500 electrical body buil 1, p.10.

This page aggregates every documented appearance of 63B in the GMC reference. Confidence and citations are shown per application — the same code can be better documented in one year than another.