Travel Motor Assembly Final Drive Gearbox 11Y-27-40700 11Y-27-40701 11Y-27-30300 For Komatsu D31EX-22 D31PX-22 D37EX-22/23/24 D37PX-22/23/24 D39EX-22 D39PX-22 Bulldozer Spare Parts Common Faults Insufficient output torque of travel motor, weak dozer travelling Slow travel speed on one side, machine drifting Abnormal noise of travel motor with housing vibration Oil leakage on motor housing, damaged oil seals and gaskets Internal wear of motor, excessive operating temperature