Description:Part # 205-4186 provides a converter impeller for the H4611-A Torque Converter.Engine power is multiplied in the torque converter and then transferred to the transmission for use by the rest of the drive train components. The convertor impeller is one of the components in the torque convertor that creates pressure to move fluid, resulting in the required torque convertor performance.Attributes:• Aluminum impeller• Number of Blades: 29• Inside Diameter: 167.73 mm (6.60 in)• Outside Diameter: 507 mm (19.96 in)• Width: 92.25 mm (3.63 in)Application:Consult your owner's manual or contact your local Cat Dealer for more information.