4th gear with ball bearings MT model	4th gear MT model w/o ball bearings	3rd gear MT, HT, NHT models	2nd gear  MT, Ht, NHT models	1st gear MT, HT, NHT models	Pinion  MT, HT, NHT models
	x	x	x	x	x

Bearing cups	GMR-K15 Repair kit	Gearmotor spring + Microswitch	Gear shaft O-rinh kit	15-pc. repair kit	Retrofit kit HT models

Bracket with bushing models MT, NHT	Bracket with bushing for HT model	Stator 120V MT, HT, NHT	4th gear model HT	4th gear model NHT	4th gear model MT

Gear motor MT 120V	Gearmotor MT 230V	Gearmotor NHT model 120V	Gear motor NHT 230V	Gear motor HT 120V	Gear motor HT 230V