Description:Cat balance 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 balance piston• Outside Diameter: 348.64 mm (13.725 in)• Inside Diameter: 145.08 mm (5.711 in)• Width: 40 mm (1.574 in)Application:Consult your owner's manual or contact your local Cat Dealer for more information.