Don't get stuck with a dead battery due to the alternator overheating! Even on the hottest day, the Jeg's Alternators stay cool, due to the unique Kool-Fin case design. This high output 140 AMP alternator includes heavy duty wound copper coils, spike resistant diodes, built in regulator, double wide heavy duty ball bearings, internal cooling fan and 1-wire connection. Each is available in either chrome or black painted finish, with your choice of single groove v-belt or 6-rib serpentine pulley. These alternators are ideal for Street Machines, Race Cars, Street Rods, Trucks and RV's.