Travel Motor Assembly 507-6557 507-6558 for E320GC Excavator

This hydraulic travel motor assembly — also referred to as a final drive — is the core walking drive component for excavators and is compatible with the E320GC model. It delivers driving torque for machine travel and integrates a hydraulic motor with a reduction gearbox. Precision machining, stable output torque, and reliable sealing make it well suited for equipment overhaul and replacement.

• 507-6557
• 507-6558

Interchange part numbers: 507-6557, 507-6558.

• Slow travel speed or weak driving torque
• Travel jitter and abnormal noise during movement
• Oil leakage from the sealing surface and joints
• No travel on one side, or travel brake failure
• High temperature after long running

• Confirm the machine model before ordering
• Check the part number against your old travel assembly
• Keep hydraulic oil clean during installation
• Replace the seal kit together if needed