Description:Service component for use with piston assemblies in the motor rotating group that converts hydraulic power to mechanical power.Attributes:• Material: Steel• Outside Diameter: 22.3 mm (0.8779 in)• Inside Diameter: 20.1 mm (0.791 in)• Width: 2.8 mm (0.110 in)Application:Consult your owner's manual or contact your local Cat Dealer for more information.