Description:Replacement turbine hub for torque convertor group.Attributes:• Material: Cast Iron• Internal Spline Number of Teeth: 27• Outside Diameter: 178.9 mm (7.043 in)• Inside Diameter: 41.745 mm (1.643 in)• Length: 58.26 mm (2.293 in)Application:Consult your owner's manual or contact your local Cat Dealer for more information.