Wacker Neuson 5000081662 Fuel Tank Cap

The Wacker Neuson Fuel Tank Cap is a genuine OEM component designed for a wide range of Wacker Neuson equipment, including CT36 and CT48 walk-behind concrete power trowels, PT3A centrifugal trash pumps, VP and WP series vibratory plates, BPU reversible vibratory plates, BFS floor saws, and G-series portable generators. As a factory-sourced part, the matches the original cap's thread profile, sealing surface, and venting characteristics exactly. This broad cross-fitment makes it a practical stock item for dealers and rental fleets running mixed Wacker Neuson equipment. Confirm your model number before ordering to ensure the is the correct cap for your specific machine configuration.

Key Features

• OEM Sealing Integrity — Engineered to the original thread pitch and sealing surface spec, ensuring a fuel-tight closure that prevents leaks and fuel contamination on every compatible model.
• Direct Thread-In Replacement — Matches the filler neck thread pattern of OEM-equipped machines, so the cap installs and torques down exactly as the original without any modification to the filler neck.
• Broad Cross-Family Fitment — Compatible with CT36 and CT48 walk-behind concrete trowels, PT3A trash pumps, VP/WP/BPU vibratory plates, BFS floor saws, and G-series generators — one part number across multiple equipment families.
• Fuel System Protection — A properly sealing tank cap keeps debris, moisture, and contaminants out of the fuel supply; a cracked, stripped, or missing cap can introduce dirt that clogs carburetors and fuel filters, leading to hard starts and rough running.
• Fuel Containment Safety — A secure, correctly vented cap prevents fuel vapor escape and splash spillage during transport and operation, supporting safe handling practices on active job sites.

The fuel tank cap seals the fuel filler opening on the engine or fuel tank assembly, keeping fuel securely contained while allowing the controlled pressure equalization that the tank requires during operation. Without a properly functioning cap, fuel can leak or evaporate, air-locking and contamination can compromise the fuel supply, and the engine may run erratically or fail to start. When a cap's threads strip or its seal degrades, replacing it promptly with the correct OEM part restores the airtight closure the fuel system depends on.

Part Details

Compatibility & Fitment

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.