WT1 ✓ Factory-verified

GMC · Regular Production Option

Exterior appearance package 1

Years 2001 Models 3 Factory citations 3

Query this via API →

Also described as Appearance package, exterior 1

Also documented for ChevroletPontiac

Documented applications

Sierra — GMT800 (1999–2007) →

• 2001 ✓ Factory-verified
  ⛭ GM factory document — 2001 gmc gmc c sierra 2wd rpo code list, p.1.

Sierra HD — GMT800 (2001–2007) →

• 2001 ✓ Factory-verified
  ⛭ GM factory document — 2001 gmc gmc c sierra 2wd rpo code list, p.1.

Yukon — GMT800 (2000–2006) →

• 2001 ✓ Factory-verified
  ⛭ GM factory document — 2001 gmc yukon 2wd rpo code list, p.1.

This page aggregates every documented appearance of WT1 in the GMC reference. Confidence and citations are shown per application — the same code can be better documented in one year than another.