Trailer Brake Control Relay is a direct fit for the following:

2009-2014 Cadillac Escalade ESV
2009-2014 Chevrolet Suburban 1500
2009-2013 Chevrolet Suburban 2500
2009-2014 GMC Yukon XL 1500
2009-2013 GMC Yukon XL 2500

Genuine GM Part Number: 20904439