Description:Cat cylinder groups are used to service hydraulic systems of heavy-duty equipment. Quality for your rugged work environment.Attributes:• Closed Length: 1305.2 mm (51.38 in)(pin to pin)• Stroke: 788.6 mm (31.04 in)• Working Pressure: 28000 kPa (4061 psi)• Rod Diameter: 65 mm (2.559 in)• Bore Diameter: 120 mm (4.724 in)• Port Thread Size (cap end): 1-5/16-12 STOR• Port Thread Size (rod end): 1-7/16-12 ORFSApplication:Used to actuate heavy-duty implements in hydraulic systems. Consult your owner's manual or contact your local Cat Dealer for more information.