The Wacker Neuson Crankshaft Complete is a genuine OEM component designed for the BFS 914A, BFS 935A, and BFS 940A series petrol floor saws. Sourced directly from Wacker Neuson, this crankshaft assembly meets the exact specifications used in original production, ensuring a direct drop-in fit across all listed BFS models. Whether you are rebuilding a high-hours saw or replacing a failed unit, part number restores your machine to proper working order with no guesswork on compatibility.
Key Features
- Genuine OEM Crankshaft Integrity — Manufactured to the same journal tolerances and balance specs as the original, so combustion forces transfer to the drivetrain cleanly without vibration-induced wear.
- Direct Assembly Replacement — Supplied as a complete crankshaft assembly, allowing straightforward installation using standard engine rebuild procedures for BFS-series engines.
- Broad BFS Series Compatibility — Confirmed fitment across multiple BFS floor saw variants including the BFS 914A, BFS 914AB, BFS 935A, BFS 940, and BFS 940A models.
- Restored Power Transfer — A correctly functioning crankshaft converts piston energy into rotational output efficiently; a worn or damaged crank causes excessive vibration, loss of power, and accelerated bearing failure throughout the engine.
- Fuel System Safety Compliance — Proper crankshaft sealing at both journals prevents combustion blow-by and oil migration into the fuel system, maintaining safe engine operation under sustained cutting loads.
The crankshaft is the central rotating component of a reciprocating engine — it converts the up-and-down motion of the piston into the rotational force that drives the saw blade. In floor saws like the BFS series, the crankshaft operates under sustained load and high RPM during concrete and asphalt cutting, making its condition critical to both engine output and longevity. When a crankshaft wears, cracks, or loses journal integrity, the result is excessive vibration, rapid bearing degradation, and eventual engine seizure — making timely replacement essential to keeping the machine in service.
Part Details
| Part Number | 5100000377 |
|---|---|
| Brand | Wacker Neuson |
| Part Type | Genuine OEM |
| Description | Crankshaft Complete |
Compatibility & Fitment
| Name | Model | Machine Number |
|---|---|---|
| BFS940 | BFS940 | 5100029229, 5100054574 |
| BFS 935A SAW,BASIC | BFS 935AB | 5000008910 |
| BFS 914AB SAW | BFS 914AB | 5000610092 |
| Petrol Floor Saw BFS 940A | BFS 940A | 5000610327, 5100004004 |
| Floor Saw | BFS 914A | 5100004002 |
| Floor saw BFS940 | BFS 940 | 5100009934 |
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.
