T176423 Hydrostat Motor Shaft 450H Only Fits 450J s/n -108451 ONLYOne New Aftermarket Replacement Hydrostatic Motor Shaft Fits John Deere Crawler Dozers This hydrostatic motor shaft is a precision drivetrain component used in the hydrostatic drive system of Fits John Deere H series and early J series crawler dozers. The shaft transmits torque from the hydrostatic motor and interfaces with the universal drive shaft coupler (T175723) within the final drive assembly. Correct fitment is strictly serial number dependent