Description:Drive coupling is used to reduce and control torsional vibrations transmitted from the engine to driven equipment. Cat torsional couplings are specifically engineered to protect the drive train during high loading events.Attributes:• Material: Steel and Rubber• Outside Diameter: 215.8 mm (8.496 in)• Width: 129 mm (5.078 in)• Thread Size: M12 (6X)Application:Consult your owner's manual or contact your local Cat Dealer for more information.