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:• Steel balance piston• Outside Diameter: 457.2 mm (18.000 in)• Inside Diameter: 413.56 mm (16.281 in)• Width: 57.15 mm (2.250 in)Application:Consult your owner's manual or contact your local Cat Dealer for more information.