Description:Replacement impeller for torque convertor group.Attributes:• Material: Cast Aluminum• Number of Blades: 31• Outside Diameter: 438 mm (17.244 in)• Inside Diameter: 160 mm (6.299 in)• Height: 99.62 mm (3.922 in)Application:Consult your owner's manual or contact your local Cat Dealer for more information.