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• Outside Diameter: 993.40 mm (39.110 in)• Inside Diameter: 726.78 mm (28.613 in)• Width: 67.5 mm (2.657 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.