An alternator pulley is a grooved wheel attached to the rotor shaft of the alternator which carries a belt to turn the wheels. The rotating pulley drives the rotor shaft by an engine drive belt once the engine is running, which in turn helps the alternator in producing electricity. A worn out alternator pulley will loosen its ability to firmly contact with the alternator, causing the belt to slip on the alternator pulley which may result to unusual noises and operation failure. Auto Parts Network carries high quality parts for your automotive needs.
Alternator Pulley 
