Wacker Neuson 5100004114 Repair Kit WM80 Piston BH5/6X

The Wacker Neuson Repair Kit WM80 Piston BH5/6X is a genuine OEM repair kit designed for the BH 65, BH 55, BH 55rw, BS62-2, and BS68-2 series breakers and rammers. As a factory-sourced component, part is manufactured to the same standards as the original parts that left the assembly line, ensuring correct material grades, tolerances, and dimensional fit across the full range of compatible models. This kit covers an extensive lineup including BH 65 and BH 55rw breaker variants in multiple hex sizes, as well as BS62-2 and BS68-2 rammer models — making it a versatile service solution for mixed fleets. When it's time to restore piston function and extend service life on your Wacker Neuson equipment, the is the correct authorized replacement.

Key Features

• Genuine OEM Piston Sealing Integrity — Factory-sourced materials deliver the correct compression characteristics and wear resistance critical for consistent piston function in pneumatic and mechanical breaker applications.
• Direct-Fit Service Kit — Engineered to drop into WM80 piston assemblies on BH5/6X configurations without modification, maintaining the correct bore clearances and seal geometry of the original design.
• Broad Model Coverage — Compatible with BH 65 and BH 55rw breaker series across multiple hex tool sizes, plus BS62-2 and BS68-2 rammer variants, including Sunbelt-spec units.
• Restores Full Striking Power — A worn or degraded piston assembly causes loss of impact energy and inconsistent tool operation; this kit returns the piston to spec so the machine delivers the full blow force it was designed for.
• Fuel System and Combustion Safety Compliance — Genuine OEM seals and piston components in breaker and rammer applications maintain proper gas sealing, preventing combustion blowby and the associated risk of heat damage or erratic operation.

A piston repair kit for the WM80 assembly restores the internal components that drive the reciprocating action in Wacker Neuson breakers and rammers. The piston and its associated seals are responsible for converting fuel combustion or pneumatic pressure into controlled, repeatable impact force delivered through the tool steel — meaning any degradation in these parts directly reduces the machine's ability to break concrete, compact soil, or drive through hard material. When the piston or seals wear, operators typically notice reduced impact energy, increased vibration, or difficulty sustaining consistent tool engagement; replacing the assembly with the correct OEM kit brings performance back to original operating condition.

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.

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