Swing Reduction Gearbox 418-7154 for E330D2 Excavator

This swing reduction gearbox is a planetary reducer designed for the swing drive system, compatible with the E330D2 excavator. It works in conjunction with the swing motor to reduce speed and amplify torque for upper frame rotation. Built with a heavy-duty planetary gear structure, it delivers high load resistance and stable transmission performance, making it well suited for equipment overhaul and replacement applications.

• Swing operation is slow or rotating torque is insufficient
• Abnormal grinding noise from inside the gearbox
• Oil leakage from gearbox sealing surfaces
• Jitter or vibration during slewing movement
• Gear tooth wear causing rotation to stick

• Confirm the machine model before ordering
• Verify the part number against your old gearbox
• Keep components clean during installation
• Replace the lubricating oil and seal kit together if needed