Description:Replacement impeller for torque convertor group.Attributes:• Material: Cast Aluminum• Number of Blades: 22• Outside Diameter: 406.35 mm (15.998 in)• Inside Diameter: 154.69 mm (6.090 in)• Height: 66.8 mm (2.629 in)Application:Consult your owner's manual or contact your local Cat Dealer for more information.