The Wacker Neuson is a genuine OEM O-Ring, Crankcase Cover designed for the EH 9, EHB 10, and EHB 11 series electric breakers and demolition hammers. As a factory-sourced component, it is manufactured to the exact material and dimensional tolerances required to maintain a proper crankcase seal on these machines. This O-ring is confirmed for an extensive range of voltage variants across the EH 9, EHB 10, and EHB 11 families, including 110V, 115V, 230V, and 240V configurations. Keeping this seal in good condition is essential to protecting the internal mechanisms of the hammer from contamination and lubricant loss.
Key Features
- Genuine OEM Seal Material — Sourced directly from Wacker Neuson, this O-ring meets the exact elastomer compound and dimensional spec required for crankcase cover sealing on EH and EHB series electric hammers.
- Drop-In Crankcase Cover Fit — Seats directly into the crankcase cover groove without trimming or modification, ensuring full contact and consistent compression around the sealing surface.
- Broad EH / EHB Series Coverage — Fits EH 9 BL, EH 9 BLM, EHB 10, EHB 11 BL, EHB 11 BLM, and EHB 11 BLS variants across multiple voltage ratings and regional configurations.
- Protects Internal Lubrication — A correctly seated crankcase O-ring prevents lubricant from escaping the crankcase and blocks dust, debris, and moisture from entering — both of which accelerate wear on internal hammer components.
- Fuel and Lubricant Resistance — Engineered to resist degradation from the lubricants used inside EH and EHB series hammers, maintaining its sealing profile under the heat and vibration cycles typical of demolition work.
The crankcase cover O-ring forms a compression seal between the crankcase cover and the hammer housing, keeping the internal lubrication contained and preventing external contaminants from entering the crankcase cavity. In electric demolition hammers like the EH and EHB series, the crankcase houses the reciprocating mechanism that drives the bit, and proper lubrication of these components is critical to consistent impact performance. When this O-ring hardens, cracks, or loses its compression set, lubricant can leak out and debris can work its way in — leading to accelerated internal wear and eventual hammer failure.
Part Details
| Part Number | 5000129366 |
|---|---|
| Old Part Number | 0129366 |
| Brand | Wacker Neuson |
| Part Type | Genuine OEM |
| Description | O-Ring, Crankcase Cover |
Compatibility & Fitment
| Name | Model | Machine Number |
|---|---|---|
| E.Breaker EHB 11 BL/115 WGB | EHB 11 BL/115 | 5000008741, 5000008733 |
| E.Breaker EHB 11 BLM/115SUL | EHB 11 BLM/115 | 5000008744, 5000008745 |
| Electric Breaker EHB 11 BL/230 | EHB 11 BL/230 | 5000008395, 5000008740, 5000610233 |
| Electric Drilling/Chisseling H ammer, SDS-max, 115V | EHB 11 BLM/230 | 5000008731, 5000008743, 5000610234 |
| E.Breaker EH 9 BL/115 SUL | EH 9 BL/115 | 5000008736, 5000008734 |
| E.Breaker EH 9 BLM/115 SUL | EH 9 BLM/115 | 5000008738, 5000008739 |
| Electric Drilling/Chisseling H ammer, Spline, 115V | EHB 11 BLS/115 | 5000008742 |
| electric hammer EHB 11 BL 230 | EHB 11 BL/230 Loxam | 5000008754 |
| Electric Breaker w/19x82.5 sha nk, 230V | EH 9 BL/230 | 5000008429, 5000008735, 5000610231 |
| Electric Breaker w/28x152 shan k, 110V | EH 9 BLM/230 | 5000008732, 5000008737, 5000610232 |
| Hammer EH 9 BL/230 Loxam | EH 9 BL/230 Loxam | 5000008753 |
| Electric Drilling/Chisseling H ammer, 19x82.5, 230V | EHB 10/230 | 5000006943, 5000007081, 5000007082, 5000007083, 5000007087, 5000007494 |
| Electric Hammer EHB 10/240 | EHB 10/240 | 5000007084, 5000007085 |
| Electric Drilling/Chisseling H ammer, Spline, 115V | EHB 11/110 | 5000007096 |
| Electric Hammer EHB 10/110 | EHB 10/110 | 5000007202, 5000007203, 5000007204 |
| Electric Hammer EHB 10/100 | EHB 10/100 | 5000007205 |
| El. Hammer EHB 10/042/200 | EHB 10/042/200 | 5000007222 |
| El. Hammer EHB 10/115/200 | EHB 10/115/200 | 5000007255 |
| El. Hammer EHB 10/250/200 | EHB 10/250/200 | 5000007264 |
| El. Hammer EHB 10/127 WMM | EHB 10/127 | 5000007351 |
| E.Breaker EH 9 BL/230 SIB | EH 9 BL/230 WMI | 5000008917 |
| electric hammer EH9 BLM/230 | EH 9 BLM/230 WMI | 5000008918 |
| E.Breaker EHB 11 BL/230 SIB | EHB 11 BL/230 WMI | 5000008919 |
| E.Breaker EHB 11 BLM/230 SIB | EHB 11 BLM/230 WMI | 5000008920 |
| E.Breaker EHB 11 BLM/230Loxam | EHB 11 BLM/230 Loxam | 5000008997 |
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.
