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: 23.65 mm (0.931 in)• Inside Diameter: 308.42 mm (12.1425 in)• Outside Diameter: 339.34 mm (13.3598 in)Application:Consult your owner's manual or contact your local Cat Dealer for more information.