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 piston with dowel pins• 5 external flanges provide exact OEM fit• Inside Diameter: 263.525 mm (10.375 in)• Outside Diameter: 318.287 mm (12.531 in)• Width: 27.686 mm (1.09 in)Application:Consult your owner's manual or contact your local Cat Dealer for more information.