Description:Cat clutch pistons are a key component in the planetary assemblies that power tough Cat transmissions to convert engine power into the exact combination of speed and force required by individual machines.Attributes:• Cast iron clutch piston• Width: 19.34 mm (0.761 in)• Inside Diameter: 311.56 mm (12.266 in)• Outside Diameter: 350.85 mm (13.8129 in)Application:Consult your owner's manual or contact your local Cat Dealer for more information.