Description:Cat cylinder groups are used to service hydraulic systems of heavy-duty equipment. Quality for your rugged work environment.Attributes:• Closed Length: 1151.5 mm (45.33 in)(pin to pin)• Stroke: 555 mm (21.85 in)• Working Pressure: 30000 kPa (4351 psi)• Rod Diameter: 90 mm (3.54 in)• Bore Diameter: 150 mm (5.905 in)• Port Thread Size (cap end): 1-5/8-12 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.