The Wacker Neuson Percussion Piston is a genuine OEM component designed for the EH 100 series electric demolition breakers, including the EH 100/240 and EH 100/230 variants. As a direct OEM part, the is manufactured to the exact tolerances required by Wacker Neuson, ensuring correct fit within the breaker's internal percussion mechanism across all covered configurations. Compatible fitment spans the EH 100/230 and EH 100/240 series, covering 28x152, 28x160, and 32x160 tool shank specifications. Sourcing the correct percussion piston for your EH 100 breaker is critical to restoring full impact output and protecting the surrounding housing components from accelerated wear.
Key Features
- OEM Impact Tolerance: — Manufactured to Wacker Neuson's exact dimensional specification for the percussion bore, ensuring the piston seats, cycles, and transfers impact energy correctly within the EH 100 breaker housing.
- Drop-In Replacement: — Engineered to install directly into the percussion cylinder of compatible EH 100 models without modification to surrounding components or tool retainers.
- Broad EH 100 Series Coverage: — Fits EH 100/240 and EH 100/230 configurations across multiple tool shank sizes, including 28x152, 28x160, and 32x160 variants.
- Restored Impact Performance: — A worn or damaged percussion piston reduces blow energy and consistency; replacing it with part 5000128425 restores the full striking force the EH 100 is rated to deliver.
- Electrical and Mechanical Safety: — In an electric breaker, a failing percussion piston can cause irregular hammering loads that stress the motor and drive mechanism; replacing it promptly protects the wider power train.
The percussion piston is the central striking component inside an electric demolition breaker. Driven by the breaker's internal mechanism, it delivers rapid, high-force blows to the tool shank, which in turn transfers that energy into concrete, masonry, or rock. When the percussion piston wears, cracks, or loses its surface hardness, impact force drops noticeably, the breaker may stall under load, and continued operation risks damage to the cylinder bore and surrounding housing. Replacing the piston with the correct OEM part restores the breaker's rated performance and protects the investment in the rest of the machine.
Part Details
| Part Number | 5000128425 |
|---|---|
| Old Part Number | 0128425 |
| Brand | Wacker Neuson |
| Part Type | Genuine OEM |
| Description | Percussion Piston |
Compatibility & Fitment
| Name | Model | Machine Number |
|---|---|---|
| Electric Breaker | EH 100/240 28x152 US | 5000008892 |
| EH 100, 28x160 | EH 100/230 28x160 | 5000610026 |
| EH 100, 32x160 | EH 100/230 32x160 | 5000610319 |
| EH 100, hex 28x152 | EH 100/230 28x152 | 5100003030 |
| Electric Hammer | EH 100/230 28x160 BR | 5100009790 |
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.
