Wacker Neuson 1000351786 Hydraulic Slew Drive AT4K12 PN12 PD18 180L5780

The Wacker Neuson is a genuine OEM Hydraulic Slew Drive AT4K12 PN12 PD18 180L5780 designed for the TH627 compact excavator. As a direct factory-sourced component, it is manufactured to the exact specifications required by Wacker Neuson for this machine, ensuring correct hydraulic porting, mounting geometry, and torque output. This part is confirmed to fit the TH627 (418-02) spare parts configuration, making it a trustworthy choice for technicians working from the factory parts list.

Key Features

• Genuine OEM Hydraulic Integrity — Factory-sourced slew drive engineered to deliver the correct hydraulic pressure ratings and rotational output specific to the TH627 swing system.
• Direct-Mount Replacement — Matches the OEM bolt pattern, port sizing, and shaft interface of the original unit for a straightforward swap during service.
• Confirmed TH627 Fitment — Verified against the TH627 (418-02) spare parts list, so you can order with confidence that this is the correct component for your machine.
• Smooth, Controlled Cab and Boom Rotation — A properly functioning slew drive delivers smooth, responsive swing motion; a worn or damaged unit causes jerky rotation, oil leaks, and loss of swing control that compromise productivity and operator safety.
• Hydraulic System Safety — The slew drive is a load-bearing hydraulic component; using a correctly rated OEM unit reduces the risk of seal failure, pressure loss, or uncontrolled swing movement under load.

The slew drive is the hydraulic rotary actuator that powers the swing function of the excavator's upper structure, allowing the cab, boom, and arm assembly to rotate relative to the undercarriage. It converts hydraulic flow from the machine's control circuit into controlled rotational torque, and its internal gearing and sealing must withstand continuous cyclic loads during digging and swinging operations. When a slew drive wears out or fails, operators typically experience sluggish or uneven swing response, hydraulic fluid leaks at the drive housing, or a complete loss of swing capability — all of which require immediate attention to keep the machine safe and operational.

Part Details

Compatibility & Fitment

Verify Before You Order

Fitment is machine-number and revision-specific; always confirm your model and serial number against the fitment list.

Why Buy From DHS Equipment

Every part is verified against the manufacturer's part number before it ships, so what you order is what arrives. We carry parts from leading OEM brands and our own DHS Quality Parts line of professional aftermarket components. Need help finding the right part? Our team is available to confirm compatibility whenever you need it. Orders are processed fast to keep your jobs on track. We don't just sell parts. We keep you jobsite ready.

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