Tail Light Harness is a direct fit for the following:

2005-2006 Chevrolet Silverado 1500
2005-2006 Chevrolet Silverado 2500 HD
2005-2006 Chevrolet Silverado 3500
2005-2006 GMC Sierra 1500
2005-2006 GMC Sierra 2500 HD
2005-2006 GMC Sierra 3500
2005-2006 Chevrolet Tahoe
2005-2006 Chevrolet Suburban 1500
2005-2006 Chevrolet Suburban 2500
2005-2006 Chevrolet Avalanche
2005-2006 Cadillac Escalade
2005-2006 Cadillac Escalade EXT
2005-2006 Cadillac Escalade ESV
2005-2006 GMC Yukon
2005-2006 GMC Yukon XL 1500
2005-2006 GMC Yukon XL 2500

Genuine GM Part Number: 16532723