Powermaster 55amp Racing Alternator

Powermaster provides all the electrical punch you need, while saving weight and space. One-wire unit that cranks out 14.7 volts and 50 amps.
True 1-wire hookup with set voltage of 14.7
High output to weight ratio
Low drag, high speed bearings
Black heat dispersant coating
No pulley is included
NOTE: Mini alternators are NOT IMCA approved for Hobby Stock or Sport Mod Divisions.
Application
30A @ 2,400 rpm @ 13.2 VDC @ 77°F
Operating Range:  -40°C to 150°C
Max RPM:  20,000
Weight:  5.80 lbs.
5" deep from front to back
4-1/4" wide on the back of the unit side to side
5-1/4" on the centerline between the bolt mounting holes