The Wacker Neuson 44921 Crankshaft is a genuine OEM crankshaft designed for the BFS 2020AS floor saw. Sourced directly from Wacker Neuson, this part meets the exact specifications of the original component installed at the factory. If you're rebuilding or repairing a BFS 2020AS, the 44921 is the correct OEM crankshaft for the job. Confirm your model number before ordering to ensure a direct application match.
Key Features
- Genuine OEM Crankshaft Spec: — Machined to the exact stroke, journal diameter, and balance tolerances required by the BFS 2020AS engine — no dimensional guesswork.
- Direct Drop-In Replacement: — Matches original mounting points, bearing journals, and PTO interfaces, so it installs into the existing engine block without modification.
- Confirmed BFS 2020AS Fitment: — Verified for the BFS 2020AS floor saw; cross-reference part number 44921 against your machine's serial plate before ordering.
- Restores Full Cutting Power: — A correctly spec'd crankshaft converts piston stroke into consistent rotational output, maintaining blade RPM and cut depth performance under load.
- Critical Safety Component: — A worn or out-of-balance crankshaft introduces vibration, bearing wear, and potential engine failure mid-cut; replacing with a genuine OEM part restores safe, stable operation.
The crankshaft is the central rotating component of the engine, converting the up-and-down motion of the piston into the rotational force that drives the blade. In a floor saw like the BFS 2020AS, it must sustain high RPM and significant load during concrete or asphalt cutting — making dimensional accuracy and material integrity critical. A crankshaft that is worn, cracked, or running out of spec will cause rough running, excessive vibration, accelerated bearing failure, and ultimately engine seizure if left unaddressed.
Part Details
| Part Number | 44921 |
|---|---|
| Brand | Wacker Neuson |
| Part Type | Genuine OEM |
| Description | Crankshaft |
Compatibility & Fitment
| Name | Model | Machine Number |
|---|---|---|
| BFS 2020AS SAW | BFS 2020AS | 5000620086 |
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.
