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• (36) tooth external spline provides exact OEM fit• Width: 39.5 mm (1.555 in)• Inside Diameter: 105.13 mm (4.1389 in)• Outside Diameter: 252.97 mm (9.959 in)Application:Consult your owner's manual or contact your local Cat Dealer for more information.