K1033688 Final Drive Reduction Gearbox for Doosan DH370-7 and DX380LC

K1033688 Travel Reduction Gearbox

The K1033688 is a new aftermarket travel reduction gearbox for selected Doosan excavators, including the DH370-7, DH370-9, DX370 and DX380LC. It transfers power from the hydraulic travel motor through the planetary reduction gears to drive the excavator track.

This product is supplied as a final drive gearbox only. The hydraulic travel motor is not included. Please confirm whether you need the gearbox only or a complete final drive assembly before ordering.

Fitment Confirmation

Machine model alone is not sufficient for final identification because different production versions may use different travel components. Please compare the original gearbox number, input shaft spline, frame mounting flange, sprocket bolt pattern, pilot diameter, overall dimensions and reduction ratio with the existing unit.

For accurate checking, please provide the excavator model, machine serial number, old gearbox number and clear photos of the input shaft, mounting flange and sprocket side.

FAQ

Does the K1033688 include the hydraulic travel motor?

No. This product is supplied as a travel reduction gearbox only. The hydraulic travel motor is not included.

How can I confirm whether this gearbox fits my excavator?

Please provide the machine model, serial number, original gearbox number and clear photos of the existing unit. The input spline, mounting dimensions and sprocket bolt pattern should also be checked.

Can I order one piece for fitment testing?

Yes. The minimum order quantity is one piece. Please complete the fitment confirmation before placing the order.

What are the warranty and estimated lead time?

The standard warranty is 6 months, and the estimated lead time is 7–15 days. Current availability should be confirmed before ordering.