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• (51) tooth external spline provides exact OEM fit• Width: 40 mm (1.5748 in)• Inside Diameter: 208.41 mm (8.205 in)• Outside Diameter: 356.49 mm (14.035 in)Application:Consult your owner's manual or contact your local Cat Dealer for more information.