Wacker Neuson 5000114075 Gearbox Assembly Kit

The Wacker Neuson Gearbox Assembly Kit is a genuine OEM component designed for the EHB 7M SDS-max electric demolition hammer. Sourced directly from Wacker Neuson, this kit carries the same engineering specifications as the original assembly, ensuring it integrates correctly with the existing drivetrain components inside the EHB 7M. If your hammer is showing signs of gear wear, slipping drive, or loss of rotational force, replacing the gearbox assembly with the correct OEM kit restores the machine to full working condition.

Key Features

• Genuine OEM Engineering: — Manufactured to Wacker Neuson's original gear tolerances and material specs, so meshing, load transfer, and rotational output match the performance of the factory-installed gearbox.
• Complete Kit Configuration: — Supplied as a full Gearbox Assembly Kit, giving you all the necessary components in a single part number to complete the rebuild without hunting down individual pieces.
• Direct Fitment for the EHB 7M: — Engineered specifically for the EHB 7M 115V SDS-max electric demolition hammer; the assembly matches OEM mounting points and gear interfaces for a straightforward installation.
• Restores Full Impact and Rotation Performance: — A worn or damaged gearbox reduces chisel rotation force and can cause erratic hammering; a fresh assembly brings consistent torque transfer and proper SDS-max tool engagement back online.
• Electrical Safety Consideration: — Because this assembly is internal to a 115V electric tool, using the correct OEM gearbox kit helps maintain proper clearances and housing integrity, keeping the tool's electrical insulation design intact.

The gearbox assembly in an SDS-max demolition hammer is responsible for converting motor rotation into the combined rotary and reciprocating action that drives chisels and drill bits through concrete, masonry, and stone. It transmits torque from the motor to the tool chuck while also coordinating with the hammer mechanism to deliver impact force. When the gearbox wears or fails, operators typically notice reduced bit rotation, unusual noise under load, or a complete loss of drive — all of which bring work to a halt and can place additional strain on the motor if left unaddressed.

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.

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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.

Questions? Contact our team at [email protected] or 866-611-9369 — DHS Equipment is here to help you maintain peak performance.