Description:Cat® Frame Cylinder Groups actuate numerous machine components ranging from steering controls to refined movement of blades, buckets or other attachments. Cat® Hydraulic cylinder groups consist of tube and rod assemblies that are ready for installation on a machine. Cat® Cylinders are manufactured with thick tube walls that enable more service lives. This feature, when combined with exclusive Cat® Oversize Seals, can extend cylinder life in many applications.Retracted Length : 520 mm (20.47 in)Stroke Length : 168 mm (6.61 in)Extended Length : 688 mm (27.09 in)Maximum Piston Velocity : 500 mm/sMinimum Full stroke design life : 50,000 cyclesApplication:Consult your owner's manual or contact your local Cat Dealer for more information.