The Wacker Neuson Fuel Tank Cap Complete is a genuine OEM component designed for the BFS and BFSX series floor saws, including the BFS18, BFS20, BFS18D, BFS20D, BFSX18, BFSX20, BFSX18D, and BFSX20D. As a direct factory-sourced part, it is manufactured to the exact specifications Wacker Neuson requires for proper sealing and fit on these machines. Sourcing as a genuine OEM replacement means you're getting the same component that ships on new equipment — no guesswork on compatibility. If your floor saw is losing fuel, venting improperly, or showing a damaged cap, this is the correct service part to restore it to full operating condition.
Key Features
- Airtight Seal Integrity — Engineered to maintain a consistent, pressure-correct seal on the fuel tank, preventing evaporative fuel loss and contamination during operation.
- Genuine OEM Construction — Manufactured by Wacker Neuson to the same material and thread specification as the original cap, ensuring correct torque engagement and cap retention.
- Direct-Fit Installation — Threads directly onto the fuel tank neck of compatible BFS and BFSX floor saws with no adaptation — swaps out in seconds during routine service.
- Broad BFS and BFSX Series Coverage — Fits BFS18, BFS20, BFS18D, BFS20D, BFSX18, BFSX20, BFSX18D, and BFSX20D floor saws, covering both standard and diamond-blade configurations.
- Fuel System Safety — A correctly sealing tank cap is a fuel system safety component — a cracked or poorly fitting cap can allow fuel spillage on hot surfaces and create fire hazard conditions on active job sites.
- Verified OEM Part Number — Part number 5000405350 is the authoritative Wacker Neuson reference for this cap assembly, making cross-referencing against your machine's parts manual straightforward.
The fuel tank cap seals the opening of the fuel tank and serves two critical functions: it keeps fuel contained during transport and operation, and it allows controlled venting so that pressure does not build up inside the tank. When the cap seal degrades or the cap itself is cracked or lost, the machine may experience fuel leakage, erratic fuel delivery caused by improper tank pressure, or contamination from dirt and debris entering the fuel system. Replacing a worn or damaged cap promptly with the correct OEM part protects the entire fuel system and keeps the saw running cleanly through demanding cutting applications.
Part Details
| Part Number | 5000405350 |
|---|---|
| Old Part Number | 0405350 |
| Brand | Wacker Neuson |
| Part Type | Genuine OEM |
| Description | Fuel Tank Cap Complete |
Compatibility & Fitment
| Name | Model | Machine Number |
|---|---|---|
| Floor Saw | BFS20D | 5000630008 |
| BFS20 | BFS20 | 5000630129 |
| Floor Saw | BFS18D | 5000630132 |
| BFS18 | BFS 18 | 5000630099 |
| Floor Saws | BFSX20D | 5000630134 |
| Floor Saws | BFSX18D | 5000630133 |
| Floor Saw | BFSX18 | 5000630249 |
| Floor Saw | BFSX20 | 5000630250 |
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.
