The Wacker Neuson Piston Ring is a genuine OEM component designed for the EHB 7 series electric demolition hammers, including the EHB 7M, EHB 7/115, and EHB 7/230 models. As a direct OEM replacement, part is manufactured to the same tolerances and material grades as the original, ensuring the piston seats and seals correctly within the hammer mechanism. This ring is the right choice when restoring full striking power and consistent blow energy to your Wacker Neuson EHB 7 series tool. Confirm your model number before ordering to ensure an exact match.
Key Features
- OEM-Grade Sealing Integrity — Manufactured to original compression and material specifications, maintaining the tight piston-to-cylinder fit that EHB 7 series hammers depend on for efficient energy transfer.
- Direct Drop-In Replacement — Engineered to install into the existing piston bore without modification, aligning with the original retaining groove geometry for a secure fit.
- Broad EHB 7 Series Coverage — Compatible with the EHB 7M, EHB 7/115, and EHB 7/230 electric SDS-max demolition hammers, covering both 115V and 230V variants.
- Restores Full Impact Performance — A worn or damaged piston ring causes loss of compression in the striking mechanism, resulting in weak or inconsistent blows; replacing it brings impact energy back to spec.
- Fuel and Pressure System Safety — In a pneumatic-piston hammer mechanism, a failed ring can cause uncontrolled pressure loss and erratic tool behavior; using a correctly rated OEM ring keeps operation predictable and controlled.
The piston ring in an electric demolition hammer like the EHB 7 series forms the critical seal between the piston and the cylinder bore within the pneumatic striking mechanism. As the motor drives the piston back and forth, the ring maintains the air compression needed to deliver consistent, high-energy blows to the tool bit. When the ring wears, cracks, or loses its seating, compression drops, blow strength decreases, and the hammer may begin striking inconsistently or feel underpowered — a clear sign the ring needs replacement.
Part Details
| Part Number | 5000104214 |
|---|---|
| Old Part Number | 0104214 |
| Brand | Wacker Neuson |
| Part Type | Genuine OEM |
| Description | Piston Ring |
Compatibility & Fitment
| Name | Model | Machine Number |
|---|---|---|
| Electric Drilling/Chisseling H ammer, SDS-max, 115V | EHB 7M | 5000007850 |
| Rotary Demolition Hammer | EHB 7/115 | 5000007706, 5000007974 |
| Electric Drilling/Chisseling H ammer, SDS-max, 115V | EHB 7/230 | 5000007973, 5000007980 |
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.
