Description:Flexible coupling, part # 469-8574, is used to mount the engine to the compressor to reduce engine load vibration.Attributes:• Torsional drive adapter with flexible rubber element• Tapered internal diameter• Outside Diameter: 571.5 mm (22.50 in)• Width: 101.6 mm (4.00 in)• Hole Size: 17 mm (0.67 in) (6X)Application:Consult your owner's manual or contact your local Cat Dealer for more information.