The Wacker Neuson Wheel Gear is a genuine OEM component designed for the EHB 7 series electric rotary demolition hammers, including the EHB 7M, EHB 7/115, and EHB 7/230 models. Sourced directly from Wacker Neuson, this part carries the same specifications as the gear installed at the factory, ensuring a consistent, correct-fit replacement when the original component wears or fails. The is the verified OEM part number for all listed EHB 7 variants, making it a straightforward like-for-like swap during hammer servicing.
Key Features
- Genuine OEM Gear Tooth Integrity — machined to the original tooth profile and hardness spec, maintaining proper mesh and load transfer inside the hammer's drive train.
- Drop-In Internal Replacement — engineered to seat and align within the EHB 7 gear housing exactly as the original, with no re-machining or adaptation of surrounding components.
- Broad EHB 7 Series Coverage — a single part number covers the EHB 7M, EHB 7/115 (115V), and EHB 7/230 (230V) rotary demolition hammers for simplified parts ordering.
- Restores Full Rotary and Chiseling Output — a worn or chipped wheel gear causes loss of rotational drive, erratic chiseling action, and accelerated wear on mating components; replacing it promptly returns the hammer to full rated performance.
- Electrical Safety Compliance — using the correct OEM gear prevents internal misalignment that can place undue load on the motor armature, protecting the electrical drive system of both 115V and 230V configurations.
The wheel gear is a core power-transmission component inside the EHB 7's internal drive assembly. It meshes with the motor pinion to convert motor rotation into the rotary and impact motion delivered to the SDS-max tool bit. When this gear wears down, chips, or fractures — typically from repeated heavy-impact loads or insufficient lubrication — the hammer loses drilling and chiseling force, produces unusual grinding noise, or fails to rotate the bit entirely. Replacing the wheel gear with a correct-specification part restores the full mechanical advantage the drive train was designed to deliver.
Part Details
| Part Number | 5000104225 |
|---|---|
| Old Part Number | 0104225 |
| Brand | Wacker Neuson |
| Part Type | Genuine OEM |
| Description | Wheel 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.
