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. As a direct OEM replacement, this spring is produced to the same specifications as the original part, ensuring correct fitment and consistent performance in the field. Verified against multiple EHB 7 variants, part number is the right call when servicing these SDS-max rotary demolition hammers. Keep this part on hand to minimize unplanned service interruptions on active demolition and drilling work.
Key Features
- Genuine OEM Spring Tension Integrity — Manufactured to the original compression load and travel specification, so the hammer mechanism cycles with the correct force every stroke.
- Drop-In Internal Replacement — Matches the original spring geometry and seating dimensions, fitting directly into the EHB 7 hammer mechanism without modification to surrounding components.
- Broad EHB 7 Series Coverage — Confirmed fitment across the EHB 7M, EHB 7/115, and EHB 7/230 electric SDS-max demolition hammers in both 115V and 230V configurations.
- Consistent Impact Cycle Performance — A properly tensioned compression spring sustains the reciprocating action of the hammer mechanism; a fatigued or broken spring results in weak blows, misfires, or a complete loss of hammering action.
- Electrical Safety Relevance — Correct spring tension ensures the internal striker and switching components operate within their designed range, reducing stress on electrical parts in the EHB 7 drive system.
The compression spring in an electric demolition hammer plays a central role in the reciprocating piston or striker mechanism that generates impact force. It stores and releases energy during each hammer cycle, maintaining the timing and force needed to drive chisels and drill bits through concrete and masonry. When this spring weakens, deforms, or breaks, the hammer loses striking power, cycles erratically, or stops delivering impact altogether — making timely replacement essential to keeping the tool productive and safe to operate.
Part Details
| Part Number | 5000104204 |
|---|---|
| Old Part Number | 0104204 |
| 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.
