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:• Hardened steel clutch piston• (46) tooth external spline provides exact OEM fit• Outside Diameter: 321.38 mm (12.652 in)• Inside Diameter: 203.2 mm (8.000 in)• Width: 36 mm (1.417 in)Application:Consult your owner's manual or contact your local Cat Dealer for more information.