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:• Material: Cast iron• Outside Diameter: 249.75 mm (9.832 in)• Inside Diameter: 131.5 mm (5.177 in)• Width: 37.75 mm (1.486 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.