Alternator

Generator
Rated output 12 V 100 A
Rotor coil resistance at 20°C (68°F) 2.1 to 2.5 Ohms
Slip ring diameter STD 12.8 to 14.4 mm (0.504 to 0.567 in.)
Rush exposed length STD 1.5 to 11.5 mm (0.059 to 0.453 in.)