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• Five external flanges provide exact OEM fit• Outside Diameter: 441.45 mm (17.379 in)• Inside Diameter: 317.5 mm (12.500 in)• Width: 25.55 mm (1.005 in)Application:Consult your owner's manual or contact your local Cat Dealer for more information.