The Wacker Neuson Compression Spring 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. Sourced directly from Wacker Neuson, this part meets the exact specifications required for correct operation of your hammer. It is a direct replacement for the original spring and installs in the same position without modification. Confirm your model number against the fitment list before ordering to ensure compatibility.
Key Features
- Genuine OEM Spring Rate: — Manufactured to Wacker Neuson's original compression load and coil specifications, so the hammer mechanism cycles with the same force and timing as when the tool left the factory.
- Drop-In Replacement: — Matches the original coil diameter, free length, and end configuration for straightforward installation during a standard service interval.
- Broad EHB 7 Series Coverage: — Fits the EHB 7M, EHB 7/115, and EHB 7/230 electric SDS-max demolition and rotary hammer models, covering both 115V and 230V variants.
- Sustained Impact Consistency: — A correctly tensioned compression spring maintains the precise energy return needed to drive the hammer piston at rated blow energy; a fatigued or broken spring causes weak impacts or a complete loss of hammer action.
- Electrical Safety Compliance: — Using a genuine OEM spring in an electric demolition hammer preserves the mechanical timing that prevents uncontrolled striker movement, which is particularly important in a 115V or 230V powered tool.
The compression spring in an electric demolition hammer sits within the impact mechanism and stores and releases energy with each piston stroke, giving the tool its striking force. When the spring is at the correct compression rate, the hammer delivers consistent blow energy to the chisel or drill bit. As the spring wears, fatigues, or breaks, the hammer will begin to feel sluggish, produce inconsistent impacts, or stop hammering altogether — making timely replacement essential to keeping the tool productive and safe to operate.
Part Details
| Part Number | 5000104205 |
|---|---|
| Old Part Number | 0104205 |
| Brand | Wacker Neuson |
| Part Type | Genuine OEM |
| Description | Compression Spring |
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.
