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: 391 mm (15.3937 in)• Inside Diameter: 188.02 mm (7.402 in)• Thickness: 55.22 mm (2.174 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.