Description:Cat brake pistons are a critical component in the brake system for Cat machine drive trains, allowing the machines to slow, stop, or hold a stationary position.Attributes:• Cast iron park brake piston• Outside Diameter: 493 mm (19.409 in)• Inside Diameter: 369.63 mm (14.552 in)• Width: 67.42 mm (2.654 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.