Description:Cat service parts offer simple repair and replacement of system components in Cat heavy-duty equipment.Attributes:• Material: Steel• Assembly consists of a piston and a slipper• Piston Diameter: 25.889 mm (1.019 in)• Slipper Diameter: 33 mm (1.299 in)Application:Service component used as needed to repair piston pump groups in the hydraulic system of heavy-duty equipment. Consult your owner's manual or contact your local Cat Dealer for more information.