For 2011-2012 GMC Sierra 3500 HD Accessory Power Relay API 58323WWJV

For 2011-2012 Chevrolet Silverado 2500 HD Accessory Power Relay API 82719DQFR

For 2008-2011 Chevrolet Express 3500 Accessory Power Relay API 21448GGFW 2002

For 2001-2002 Chevrolet Silverado 3500 Accessory Power Relay API 37621XKCV

For 2007-2011 Chevrolet Silverado 3500 HD Accessory Power Relay API 11457PQYC

For 2007 Chevrolet Silverado 3500 HD Accessory Power Relay SMP 51297ZKDM

For 2001-2002 Chevrolet Silverado 2500 HD Accessory Power Relay API 77518RHDZ

For 2001-2002 Chevrolet Silverado 1500 HD Accessory Power Relay API 84213KTNG