A Fan Drive Alternator is connected to the engine crankshaft through a belt or gear unit. As the engine rotates, it transfers mechanical energy to the alternator, which converts it into electrical energy.Attributes:• Withstands the harsh conditions of the engine compartment• Manufactured to precise specifications and are built for durability and reliabilityApplications: A Fan Drive Alternator helps regulate the temperature of the engine by drawing in cool air and expelling hot air.