Heavy-Duty Swing Motors & Swing Reduction Gearbox Assemblies

If your excavator is struggling to rotate under load or you notice excessive "drift" when stopping the boom, a failing replacement swing motor or gearbox is often the cause. As the mechanism responsible for 360-degree rotation, the high-torque swing drive converts hydraulic pressure into the massive force needed to move the entire upper structure. BeeSpareParts offers precision-engineered swing assemblies designed to restore smooth rotation and pinpoint control to your heavy equipment.

A swing system failure can often be traced back to fluid issues or worn seals. To protect your investment, we recommend inspecting your if the entire machine feels slow, or browsing our at the first sign of oil leakage around the turntable. Our swing gearboxes feature hardened planetary gears and heavy-duty bearings, providing a direct-fit alternative to expensive OEM units that can withstand the constant start-stop stress of digging and loading.

Whether you need a swing motor for a 20-ton excavator, a mini-excavator slewing drive, or replacement sun gears, our parts are rigorously factory-tested for load-bearing capacity and ready for fast international shipping. Get your machine spinning smoothly again—order your heavy-duty swing solution today.

Fits for:

• Engine & Model Series: 4BT, 6BT, 4D95, 6D102, S6K, J05E, J08E, 4HK1, 6HK1.

• Equipment Models: ZX, PC, SK, EC, EX series excavators, mobile cranes, and tracked vehicles.