The Wacker Neuson Mechanism Lock is a genuine OEM component designed for the EH 9 BLM and EHB 11 BLM series electric breakers and hammers. As a direct factory replacement, this part is sourced and supplied to the same specifications as the original, ensuring it seats and functions exactly as the manufacturer intended. Fitment covers both 115V and 230V variants across the EH 9 BLM and EHB 11 BLM model lines, making it the correct choice for a wide range of these electric demolition tools. Verify your model number before ordering to confirm compatibility with your specific unit.
Key Features
- Genuine OEM Locking Integrity — Manufactured to the same tolerances as the original, ensuring the locking mechanism engages and releases with the correct retention force for this tool class.
- Direct Drop-In Replacement — Engineered to install in the same position and mounting points as the factory part, with no rework needed to the surrounding assembly.
- Broad EH / EHB Series Fitment — Compatible with multiple EH 9 BLM and EHB 11 BLM variants, spanning both 115V and 230V configurations across the electric breaker and hammer lineup.
- Sustained Striking Consistency — A correctly functioning mechanism lock keeps the internal drive components properly indexed, supporting consistent chisel or bit retention during heavy demolition work.
- Operational Safety Compliance — The mechanism lock is a retention-critical component; a worn or failed lock can cause unintended bit release during operation, making prompt replacement essential for safe tool use.
The mechanism lock in an SDS-max electric breaker or hammer is the component responsible for securing the tool bit or chisel shank within the chuck during operation. It holds the bit in place while still allowing controlled release during bit changes, using a spring-loaded or cam-based retention system. When this lock wears or fails, the bit may slip, rattle, or eject unexpectedly, compromising both the efficiency of the break and the safety of the operator — making it one of the higher-priority wear items to inspect and replace on a working electric demolition hammer.
Part Details
| Part Number | 5000109293 |
|---|---|
| Old Part Number | 0109293 |
| Brand | Wacker Neuson |
| Part Type | Genuine OEM |
| Description | Mechanism Lock |
Compatibility & Fitment
| Name | Model | Machine Number |
|---|---|---|
| E.Breaker EHB 11 BLM/115SUL | EHB 11 BLM/115 | 5000008744, 5000008745 |
| Electric Drilling/Chisseling H ammer, SDS-max, 115V | EHB 11 BLM/230 | 5000008731, 5000008743, 5000610234 |
| E.Breaker EH 9 BLM/115 SUL | EH 9 BLM/115 | 5000008738, 5000008739 |
| Electric Breaker w/28x152 shan k, 110V | EH 9 BLM/230 | 5000008732, 5000008737, 5000610232 |
| electric hammer EH9 BLM/230 | EH 9 BLM/230 WMI | 5000008918 |
| 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.
Wacker Neuson