The Wacker Neuson Drive Piston is a genuine OEM component designed for the EH 100 series electric breakers and demolition hammers, including the EH 100/240 28x152 US, EH 100/230 28x160, EH 100/230 32x160, EH 100/230 28x152, and EH 100/230 28x160 BR configurations. Sourced directly from Wacker Neuson, this part meets the exact tolerances and material specifications required to keep your electric breaker operating at peak strike performance. Confirmed fitment across multiple EH 100 variants makes the a dependable choice when servicing these demolition tools. Verify your model number before ordering to ensure the correct piston geometry for your application.
Key Features
- Genuine OEM Dimensional Accuracy — Manufactured to the exact stroke length and diameter specifications required for consistent impact energy delivery in EH 100 electric breakers.
- Direct Drop-In Replacement — Engineered to seat and seal within the existing cylinder bore without machining or fitting adjustment, restoring the original reciprocating action.
- Broad EH 100 Series Compatibility — Fits the EH 100/240 28x152 US, EH 100/230 28x160, EH 100/230 32x160, EH 100/230 28x152, and EH 100/230 28x160 BR models.
- Restored Impact Force — A correctly fitted drive piston maintains full blow energy transfer to the chisel or bit; a worn piston causes weak, inconsistent strikes that slow concrete and demolition work significantly.
- Critical Safety-Adjacent Component — A failed or fractured drive piston can cause unpredictable hammer behavior during operation; using the correct OEM part maintains structural integrity inside the breaker housing.
The drive piston is the reciprocating heart of an electric breaker, converting the energy generated by the motor and striker mechanism into the repeated, high-force blows delivered to the chisel or breaking tool. It travels at high speed within a precision-machined cylinder bore, and its fit, surface finish, and material hardness are all critical to efficient energy transfer. When the drive piston wears, cracks, or loses its correct geometry, the breaker produces reduced impact force, increased vibration, and in severe cases, internal damage to the cylinder or striker assembly.
Part Details
| Part Number | 5000128427 |
|---|---|
| Old Part Number | 0128427 |
| Brand | Wacker Neuson |
| Part Type | Genuine OEM |
| Description | Drive 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.
