Trailer Brake Control Relay 20904439 Fits 2007-2014 GMC Sierra 2500 76760

2007-2013 Chevy Silverado GMC Sierra Trailer Brake Control Module OEM 20850923

2007 GMC Sierra 1500 Engine Control Module ECM ECU Computer OEM 12614085 Tested

2007 - 13 GMC Sierra Silverado 1500 TCM Transmission Control Module OEM 24252114

2007 - 2013 GMC Sierra 1500 4x4 Transfer Case Control Module TCCM OEM 24246029

2007 GMC Sierra 1500 Transfer Case Control Module TCCM 4x4 OEM 12590219 Tested

2004-2009 Toyota Prius Power Brake Control Module OEM 89680-33010

OEM Trailer Brake Tow Control Module 20850925 2007–2009 Silverado Sierra 1500 4x