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:• Steel torsional coupling assembly• Outside Diameter: 352.35 mm (13.872 in)• Inside Diameter: 80.162 mm (3.155 in)Application:Consult your owner's manual or contact your local Cat Dealer for more information.