Description:Replacement impeller for torque convertor group.Attributes:• Material: Cast Aluminum• Number of Blades: 31• Outside Diameter: 415.5 mm (16.358 in)• Inside Diameter: 160.12 mm (6.303 in)• Height: 139.9 mm (5.507 in)Application:Consult your owner's manual or contact your local Cat Dealer for more information.