Caterpillar 315B / 315B L Final Drive & Travel Motor Assembly 148-4570

148-4570 Final Drive & Travel Motor Assembly

The 148-4570 final drive and travel motor assembly is used in the track drive system of Caterpillar 315B and 315B L excavators. It converts hydraulic power from the travel circuit into the torque required to drive the track and move the machine.

This replacement assembly is intended for buyers who need a complete final drive with travel motor rather than separate internal gearbox or hydraulic motor components.

Fitment Confirmation Before Ordering

Different production ranges or previous repairs may result in changes to the installed final drive configuration. Before placing an order, provide the complete machine model, serial number, old final drive number and clear photos of the existing assembly.

If the old number is not visible, send photos showing the mounting flange, hydraulic hose connections and sprocket-side structure. These details help confirm whether the supplied assembly matches the machine.

Common Reasons for Final Drive Replacement

A final drive assembly should be inspected when the excavator loses travel power, moves unevenly, produces abnormal gearbox noise, leaks gear oil or contains metal particles in the drained oil. The travel hydraulic circuit, brake system and undercarriage condition should also be checked before the final drive is identified as the cause.

FAQ

Does the 148-4570 final drive fit both the Caterpillar 315B and 315B L?

Yes. Caterpillar lists 148-4570 as a final drive group compatible with both the 315B and 315B L excavators. The machine serial number and installed assembly should still be checked before ordering.

Can 136-2798 be used as a reference when requesting this final drive?

Yes. Buyers can provide 136-2798 as a replacement checking reference. To avoid ordering the wrong configuration, also provide the machine serial number and photos of the existing final drive.

What information is required to confirm fitment?

Please provide the machine model, serial number, old part number and clear photos of the mounting flange, hydraulic ports and sprocket-side structure.

What is included with the supplied assembly?

The quotation and packing list will identify the supplied final drive configuration and included components. Confirm separately if a sprocket, hoses, mounting hardware or other installation parts are required.

What are the warranty and lead time?

The listed warranty is 6 months, and the standard lead time is 7–15 days. Stock and shipping arrangements should be reconfirmed when the order is placed.