Product Overview This hydraulic final drive assembly, integrated with a travel motor and reduction gearbox, is the walking drive core component for excavators. It is compatible with the E336GC and E345GC models and delivers the driving torque required for machine travel. Precision machining, stable output torque, and reliable sealing make it well suited for equipment overhaul and replacement. Compatible Models E336GC, E345GC Excavator Interchange Part Numbers 557-5904, 557