Description:Seal assembly provides a fluid tight seal between the cylinder and rod.Attributes:• U-Cup Material: Urethane• Spacer Material: Elastoplastic• Rod Diameter: 50.75 mm (1.998 in)• Bore Diameter: 66.68 mm (2.625 in)• Minimum Groove Width: 26.87 mm (1.0578 in)Application:Used as needed to service hydraulic cylinder components to keep your equipment leak free. Consult your owner's manual or contact your local Cat Dealer for more information.