Description:Piston part # 416-9289 provides a brake piston for the oil-actuated disc-type brake mechanism for stopping machine.Cat drive train brake components must endure incredible torque and high impact loads during a braking application. Cat designs and manufactures its brake components with these demands in mind. The result is a drive train brake system that lasts longer and works harder over the life of the machine.Attributes:• Cast iron piston• Outside Diameter: 363.4 mm (14.31 in)• Inside Diameter: 292.52 mm (11.52 in)• Width: 98 mm (3.86 in)Application:Brake pistons are used in Cat drive train braking systems. Consult your owner's manual or contact your local Cat Dealer for more information.