Kubota RD108-61600 Final Drive Travel Motor Assembly

The RD108-61600 is a complete hydraulic final drive assembly integrating a dual-displacement axial piston travel motor with a planetary reduction gearbox. It is designed as a direct bolt-on replacement for the Kubota KX121-2 and KX121-2 (H) mini excavators. The hydraulic motor component corresponds to the KYB MAG-26V-380F-1 model, providing two-speed travel functionality with integrated parking brake, counterbalance valve, and relief valve. The planetary gearset delivers final torque multiplication to the track sprocket. This assembly replaces Kubota OEM part numbers RD108-61600, RD108-61802, RG701-61600, RD128-92700, RD128-92704, and RD118-61290. The unit features a sprocket inner diameter of 204 mm and matches OEM hydraulic port locations and sizes for direct hose connection. It is applicable to machines equipped with the Kubota D1402 engine series. The assembly weight is approximately 44 kg (97 lbs).