Serpentine Belt. 2003-2006 Chevrolet Avalanche 1500 with 145 Amp Alternator Drive Belt Component Kit. 2004-2006 Chevrolet Silverado 1500 Z71 V8 5.3L with 145 Amp Alternator Drive Belt Component Kit. 2003-2006 Cadillac Escalade with 145 Amp Alternator Drive Belt Component Kit.
