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: 257.8 mm (10.1496 in)• Inside Diameter: 124.2 mm (4.8897 in)• Width: 25.1 mm (0.988 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.