**Verify part fits before purchasing** Specs: Unit Type: Alternator Voltage: 12 Rotation: CW Amperage: 160 Clock: 11 Pulley Class: S6 Regulator: IR Fan Type: IF Replaces OEM Numbers: ARROWHEAD: 400-24054 ARROWHEAD (OEM): BAL8782N BOSCH: 0-124-525-072, 0-124-525-104 GENERAL MOTORS: 10371020, 15128978, 15200269 J & N: 400-24054 LESTER: 11075 REMY LIGHT DUTY: 12629 Compatible With/Replacement For: CADILLAC: ESCALADE 2005-2006, ESCALADE ESV 2005-2006, ESCALADE EXT 2005-2006 CHEVROLET: AVALANCHE 1500 2005-2006, SILVERADO 1500 2005-2007, SILVERADO 1500 HD 2005-2007, SILVERADO 2500 HD 2005-2007, SILVERADO 3500 2005-2007, SILVERADO 3500 HD 2007, SUBURBAN 2005-2006, TAHOE 2005-2006 GMC: SIERRA 1500 2005-2007, SIERRA 1500 HD 2005-2007, SIERRA 2500 HD 2005-2007, SIERRA 3500 2005-2007, SIERRA 3500 HD 2007, SIERRA DENALI 2005-2007, YUKON 2005-2006, YUKON XL 2005-2006.