This is the American Lincoln Drive Motor.Replaces part #835209.Fits the following models:Autoscrubber 66(DS)Autoscrubber 66D (DS)Autoscrubber 81(DS)Autoscrubber 81D(DS)Specifications:HP - Torque: 0.5 HpVoltage: 36V DCTermination: Female Connector - 2 Wire