Wacker Neuson 5000119500 Fuel Tank Cap

The Wacker Neuson Fuel Tank Cap is a genuine OEM component designed for a wide range of Wacker Neuson portable generators, ride-on concrete trowels, tandem rollers, and trash pumps — including GP, GPS, G, and GS generator series, CRT48 and CRT36 ride-on trowel models, RD11 tandem rollers, and PTS4V trash pumps. As a direct OEM replacement, part is built to the exact dimensions and sealing specifications of the original, ensuring a correct fit without modification. This cap is a commonly needed service part across a broad range of Wacker Neuson equipment families, making it a smart item to keep on hand. Confirm your model number against the fitment list before ordering to ensure compatibility.

Key Features

• Genuine OEM Sealing Integrity — Manufactured to Wacker Neuson's original dimensional and material specifications, delivering the thread engagement and seal compression needed to prevent fuel vapor loss and contamination ingress.
• Drop-In Thread Match — Engineered to the original filler neck thread profile, so the cap seats and torques down correctly without rework or adapter hardware.
• Broad Cross-Family Fitment — A single part number covers GP, GPS, G, and GS portable generator series, CRT36 and CRT48 ride-on trowels, RD11 tandem rollers, and PTS4V trash pumps — consolidating your parts inventory across multiple machine types.
• Fuel System Protection — A properly sealing cap keeps debris, moisture, and contaminants out of the tank, protecting the fuel supply and downstream carburetor or fuel injection components from accelerated wear.
• Fuel Safety Compliance — A correctly fitted, OEM-specified cap maintains the closed fuel system required for safe operation, preventing fuel spillage and vapor release during transport and use.

The fuel tank cap seals the filler opening on the machine's fuel tank, keeping the fuel supply clean and contained during operation, transport, and storage. A functional cap prevents dirt, water, and debris from entering the tank — contamination that can clog fuel lines, foul carburetors, and cause hard-starting or engine damage. When a fuel tank cap is cracked, stripped, or missing its sealing gasket, it can also allow fuel to splash or weep from the filler neck, creating a fire hazard and fuel loss during normal operation.

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.