The Wacker Neuson Crank Gear Coupling is a genuine OEM component designed for BH 24 Low Vib and BH 55rw series petrol breakers. As a direct OEM replacement, this coupling is manufactured to the same specification as the original part, ensuring a correct installation with no guesswork involved. Fitment spans the full range of BH 24 Low Vib variants — including Low Vib RS configurations — and all BH 55rw tool-size variants from 25x108 through 32x160. Keeping this coupling in serviceable condition is essential to maintaining consistent, controlled breaker operation on demanding demolition applications.
Key Features
- Genuine OEM Gear Engagement Integrity — Manufactured by Wacker Neuson to the original tooth-profile and material specification, ensuring smooth, lash-free power transfer between the crank and gear train.
- Direct Installation Fit — Drops into place on the crank assembly exactly as the factory part, with matching bore dimensions and interface geometry for a straightforward swap.
- Broad BH Series Compatibility — Confirmed fitment across BH 24 Low Vib (including RS variants) and BH 55rw breakers in multiple chisel-size configurations, covering a wide range of job applications.
- Sustained Impact Transmission — A correctly functioning crank gear coupling delivers consistent strike energy to the tool steel; a worn or damaged coupling causes erratic impact rhythm, lost breaking force, and accelerated wear on surrounding drivetrain components.
- Low-Vibration System Integrity — On Low Vib platform machines, the coupling plays a role in the balanced drivetrain that keeps vibration levels within safe operating limits for the operator; a compromised coupling can undermine the machine's vibration-reduction performance.
The crank gear coupling connects the crankshaft to the gear drive, transmitting rotational motion into the reciprocating impact stroke that drives the chisel into concrete or masonry. It acts as a precision interface between the engine's power output and the breaker mechanism, and its geometry must remain accurate for the machine to deliver consistent blow energy. When the coupling wears or fails, impact output becomes irregular or drops off entirely, and continued operation risks secondary damage to the crankshaft and surrounding components.
Part Details
| Part Number | 5000202974 |
|---|---|
| Old Part Number | 0202974 |
| Brand | Wacker Neuson |
| Part Type | Genuine OEM |
| Description | Crank Gear Coupling |
Compatibility & Fitment
| Name | Model | Machine Number |
|---|---|---|
| Petr. Breaker BH24LowV.EE27x80 | BH 24 Low Vib | 5000008995, 5000610082, 5000610083, 5000610081, 5000610343, 5000610388, 5000610389, 5000610390, 5000610391, 5000610392 |
| Gasoline Breaker | BH 24 Low Vib RS | 5000008996, 5000610393 |
| BH55rw 27x80 | BH 55rw 27x80 | 5100004038 |
| BH55rw 25x108 | BH 55rw 25x108 | 5100004039 |
| BH 55rw 28x152 | BH 55rw 28x152 | 5100004040 |
| BH55rw 28x160 | BH 55rw 28x160 | 5100004041 |
| BH55rw 32x160 | BH 55rw 32x160 | 5100004042 |
| BH55RW RS 27x80 | BH 55rw rs 27x80 | 5100004043 |
| BH55rw 32x160 | BH55rw 32x160 | 5100047102 |
| Petrol Breaker | BH55rw 27x80 SEA | 5100026904 |
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.
