Description:Replacement impeller for torque convertor group.Attributes:• Material: Cast Aluminum• Number of Blades: 16• Outside Diameter: 301.5 mm (11.870 in)• Inside Diameter: 117.5 mm (4.625 in)• Height: 71.06 mm (2.797 in)Application:Consult your owner's manual or contact your local Cat Dealer for more information.