The Wacker Neuson Extension Spring is a genuine OEM component designed for the BFS 2020AS and BFS 1318AS self-propelled walk-behind floor saws. Sourced directly from Wacker Neuson, this part is manufactured to the exact specifications of the original, ensuring a correct, consistent installation without guesswork. It is the same spring supplied on the production line, so fitment across the BFS series is confirmed by part number. When you need a like-for-like replacement that restores your saw to proper operating condition, the is the correct choice.
Key Features
- Genuine OEM Tension Consistency — Manufactured to the original extension force specification, ensuring the spring delivers the correct tension load that the BFS floor saw's mechanism depends on.
- Direct Drop-In Installation — Matches the original mounting points and hook geometry of the BFS series, allowing the spring to seat and attach exactly as the factory unit did.
- Confirmed BFS Series Fitment — Verified for the BFS 2020AS and BFS 1318AS walk-behind floor saws; check your model and machine number before ordering.
- Restores Proper Mechanism Function — A fatigued or broken extension spring can cause inconsistent tension, erratic blade engagement, or loss of controlled movement; this replacement brings the system back to correct operation.
- Backed by Wacker Neuson OEM Quality — Built from spring-grade material to resist fatigue across repeated load cycles in the demanding environment of a production floor saw.
An extension spring works by storing mechanical energy when stretched, then applying a return force to pull two connected components back toward each other. In a walk-behind floor saw like the BFS series, extension springs are used to maintain tension on control linkages, blade guards, or drive mechanisms — keeping moving parts properly loaded and returning to their neutral or engaged position as intended. When an extension spring weakens from metal fatigue or breaks entirely, the linked mechanism loses its return force, which can result in loose controls, a component that fails to return to position, or inconsistent machine behavior during cutting operations. Replacing the spring promptly with the correct OEM part restores the designed tension and keeps the saw operating predictably.
Part Details
| Part Number | 5000163803 |
|---|---|
| Old Part Number | 0163803 |
| Brand | Wacker Neuson |
| Part Type | Genuine OEM |
| Description | Extension Spring |
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.
