Alternator Rotor Rotating Armature for Denso Alternators 12 Volt, 100-125 Amp, 155mm Long - 28-8204Alternator Rotor Armature Replacing Denso 021200 3880, 021200 3890, 021200 4330, 021200 4890, 021200 5030, 021200 7450, 021200 8010, Toyota 27330 20070, 27330 64520 Other 7090655, 214 013, ND 682, 303 52002 28 8204 Voltage: 12, High Output Amps: 120 Body OD: 101. 3mm Shaft OD (DE Bearing): 17mm Shaft OD (SRE): 15mm Slip Ring ID: 8. 5mm Slip Ring OD: 14. 1mm Length: 155mm Pole Thickness: 55mm Shaft OD (Pulley): 17mm Shaft Threads: M14 1. 5 Bearing