12 Volt Single Speed 2 Wire Motor With 5/16'' Shaft - Mack12 Volt Single Speed 2 Wire Motor With 5 16'' Shaft Mack 4379 RD559070, HA1695 TYPE: Single Shaft, Single Speed SHAFT SIZE: 5 16'' SHAFT LENGTH: 1 1 8'' MOTOR DIAMETER: 3'' MOTOR LENGTH: 4'' OVERALL LENGTH: 6'' ROTATION: Clockwise NUMBER OF WIRES: 2 VOLTAGE: 12 NUMBER OF SPEEDS: Single STUD SPAN: 2 5 16'' Can be installed on the following vehicles: MACK CM400 Non Vented Sealed Motor Can use Red Dot Version KA58001 OEM Numbers 4379 RD559070, HA1695