The Wacker Neuson Cup Spring is a genuine OEM component designed for the EHB 11 series electric breakers and demolition hammers. This includes the full range of EHB 11 BL, BLM, and BLS variants across both 115V and 230V configurations. As a direct OEM replacement, the matches the original part specification, ensuring proper installation without modification. Verified against multiple EHB 11 machine configurations, this cup spring is the correct service replacement to keep your electric breaker operating as intended.
Key Features
- Genuine OEM Spring Tension Compliance — Manufactured to original Wacker Neuson tolerances, delivering the correct spring rate and compression behavior required for consistent hammer mechanism function.
- Direct Drop-In Fit — Engineered to seat correctly within the EHB 11 tool holder and percussion assembly, aligning with existing retention geometry for straightforward installation.
- Broad EHB 11 Series Compatibility — Fits EHB 11 BL, BLM, and BLS variants in both 115V and 230V ratings, covering a wide range of Wacker Neuson electric breaker configurations.
- Maintains Percussion System Integrity — A correctly functioning cup spring sustains proper impact cycle loading; a worn or broken spring causes inconsistent striking action or complete loss of percussion function.
- Electrical Safety Compliance — Using the correct OEM spring ensures the tool holder mechanism operates within its designed parameters, reducing the risk of component failure in a live electrical tool.
The cup spring in an electric demolition hammer sits within the percussion or tool retention assembly, where it absorbs and distributes impact energy during each strike cycle. It maintains the correct preload on internal components, allowing the hammer mechanism to cycle smoothly and consistently. When this spring fatigues, deforms, or breaks, the breaker may produce a weakened blow, irregular percussion rhythm, or complete loss of chiseling action, signaling that the part requires immediate replacement.
Part Details
| Part Number | 5000125299 |
|---|---|
| Old Part Number | 0125299 |
| Brand | Wacker Neuson |
| Part Type | Genuine OEM |
| Description | Cup Spring |
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 |
| Electric Drilling/Chisseling H ammer, Spline, 115V | EHB 11 BLS/115 | 5000008742 |
| electric hammer EHB 11 BL 230 | EHB 11 BL/230 Loxam | 5000008754 |
| 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.
