The Wacker Neuson Crank Gear is a genuine OEM component designed for the EHB 7M, EHB 7/115, and EHB 7/230 series electric rotary demolition hammers. As a direct OEM replacement, this part is sourced from Wacker Neuson and manufactured to the same specifications as the original, ensuring a correct fit within the hammer's internal drive assembly. Confirmed fitment spans the EHB 7/115 and EHB 7/230 variants, including SDS-max configurations rated at both 115V and 230V. Keeping this critical drivetrain component in proper working order is essential to maintaining the full drilling and chiseling output of your EHB 7 series hammer.
Key Features
- Genuine OEM Gear Geometry — Manufactured to the original tooth profile and hardness specification, maintaining proper mesh with mating drivetrain components inside the EHB 7 series hammer.
- Direct Internal Drive Replacement — Installs into the existing crank assembly position without modification, restoring the mechanical conversion of motor rotation to reciprocating hammer action.
- Broad EHB 7 Series Coverage — Confirmed fit for the EHB 7M, EHB 7/115, and EHB 7/230, covering both 115V and 230V SDS-max demolition hammer variants.
- Restored Impact Energy Transfer — A worn or damaged crank gear causes loss of striking force, erratic chiseling action, or complete drive failure; replacing it restores full rated impact performance.
- Drivetrain Safety Integrity — Gear failure under load can cause sudden loss of hammer function or internal component damage; using the correct OEM part maintains safe, predictable operation during demolition work.
The crank gear is a core element of the rotary demolition hammer's internal drive train. It converts the rotational output of the motor into the reciprocating motion that drives the striker mechanism, producing the impact force needed for drilling and chiseling in concrete and masonry. When the crank gear wears or fractures, the hammer loses striking power, produces inconsistent blows, or stops driving entirely — making timely replacement essential to keeping the tool functional and safe on the job.
Part Details
| Part Number | 5000104218 |
|---|---|
| Old Part Number | 0104218 |
| Brand | Wacker Neuson |
| Part Type | Genuine OEM |
| Description | Crank Gear |
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.
