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 brake piston• Eight external flanges with dowel clearance holes provide exact OEM fit• Outside Diameter: 393 mm (15.472 in)• Inside Diameter: 292.52 mm (11.516 in)• Width: 80.4 mm (3.165 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.