Product Description Amp Draw: 21 amps max Amps: 21 amps max Connector: Amp Diameter: 2 59/64" (74.4mm) Length: 4 11/32" (110.2mm) Motor Length: 4 1/64" (102.2mm) Mount: Strap Rotation: CCWCE Shaft Diameter: 5/16" (7.937mm) Shaft Length: 2 13/16" (71.4mm) Speed: 1 Stud Span: 2 5/16" (58.7mm) Vent: V Voltage: 12 Wires: 2