The Wacker Neuson is a genuine OEM Extension Spring 9/16 X 2.5 designed for BFS series walk-behind floor saws, including the BFS 2020AS and BFS 1318AS. As a factory-sourced component, part is manufactured to the same specification as the original, ensuring correct tension, hook geometry, and dimensional fit right out of the box. This spring is a direct replacement for the worn or broken original, restoring proper mechanical function without modification. If your BFS floor saw is showing signs of slack, misalignment, or component return failure, this is the part to have on hand.
Key Features
- Correct Tension Rating: — Engineered to the original tension specification, so spring-loaded components return consistently and hold position under load during cutting operations.
- Exact Dimensional Match: — The 9/16 x 2.5 sizing matches the original hook-to-hook length and coil diameter, dropping into the existing mounting points without alteration.
- Genuine OEM Sourcing: — Sourced directly from Wacker Neuson, this spring carries the same part number and material grade as the production component — not an approximation.
- Confirmed Fitment: — Verified for the BFS 2020AS and BFS 1318AS self-propelled walk-behind floor saws, covering both models in the BFS AS series lineup.
- Prevents Operational Drift: — A fatigued or broken extension spring can cause erratic blade guard behavior or improper component return, affecting cut quality and operator control. Replacing it restores consistent saw operation.
An extension spring stores and releases energy by stretching between two anchor points, pulling a connected component back to its resting or closed position when released. In a walk-behind floor saw like the BFS series, extension springs are used to control return movement of guards, levers, or other tensioned assemblies — keeping components properly seated during operation and returning them predictably when released. When an extension spring fatigues, takes a set, or breaks entirely, the affected component may hang loose, fail to return, or create uncontrolled movement that interferes with cutting performance and safe saw operation.
Part Details
| Part Number | 5000163785 |
|---|---|
| Old Part Number | 0163785 |
| Brand | Wacker Neuson |
| Part Type | Genuine OEM |
| Description | Extension Spring 9/16 X 2.5 |
Compatibility & Fitment
| Name | Model | Machine Number |
|---|---|---|
| BFS 2020AS SAW | BFS 2020AS | 5000620086 |
| Self-propelled Walk-behind Saw | BFS 1318AS | 5000620085 |
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.
