Evan-Fischer Serpentine Belt --. 2002 Silverado 2500 HD (submodel: Base, LS, LT) It Fits the Model With 130A Alternator and Without Vacuum Pump. 2003-2005 Silverado 2500 HD (submodel: Base, LS, LT) Fits Models With 145A Alternator and Without Vacuum Pump.
