The Wacker Neuson Fuel Tank Cap is a genuine OEM component designed for a range of Wacker Neuson equipment including the CT36BDT walk-behind power trowel, PT2B centrifugal trash pump, PDT2B diaphragm trash pump, and B 3000 and B 5000 gasoline power units for internal vibrators. As a genuine OEM part, it is produced to the same specifications as the original, ensuring a correct, secure fit on every compatible machine. This cap seals the fuel tank opening to prevent fuel spillage, contamination, and vapor escape during operation and transport. If you are servicing any of the listed models, verifying part number against your machine's serial number is the best way to confirm compatibility before ordering.
Key Features
- Genuine OEM Seal Integrity — Manufactured to the original specification, this cap provides the same sealing compression as the factory-installed part, keeping fuel contained and the tank free from debris ingestion.
- Direct-Fit Replacement — Engineered to thread or seat directly onto the fuel tank filler neck of compatible Wacker Neuson models with no alteration to the tank or surrounding components.
- Broad Fitment Across Multiple Machine Families — Compatible with CT36BDT walk-behind trowels, PT2B and PDT2B trash and diaphragm pumps, and B 3000 and B 5000 gasoline power units for internal vibrators.
- Fuel System Protection — A properly seated tank cap prevents fuel evaporation, moisture ingress, and particulate contamination — all of which can degrade fuel quality and cause hard-starting or carburetor issues over time.
- Fuel Spillage Prevention — A worn or cracked tank cap is a genuine fire and safety hazard during refueling and transport; replacing it promptly with a correct OEM part maintains safe operating conditions across all covered equipment types.
The fuel tank cap seals the filler opening on a gasoline-powered machine's fuel tank, preventing fuel from escaping during operation, handling, and transport. It also acts as the first barrier against dirt, water, and debris entering the fuel system — contamination that can clog a carburetor or fuel filter and lead to poor engine performance or no-start conditions. When a fuel tank cap cracks, loses its sealing gasket, or no longer threads securely, fuel can leak or evaporate, creating both a fire risk and a loss of run time that affects productivity on the jobsite.
Part Details
| Part Number | 5000077041 |
|---|---|
| Old Part Number | 0077041 |
| Brand | Wacker Neuson |
| Part Type | Genuine OEM |
| Description | Fuel Tank Cap |
Compatibility & Fitment
| Name | Model | Machine Number |
|---|---|---|
| 915mm/36in Walk-behind Trowel | CT36BDT | 5000008009 |
| 50mm/2in Centrifugal Trash Pum p | PT2B | 5000006722 |
| Gasoline Power Unit for Intern al Vibrator | B 3000 | 5000005829 |
| Gasoline Power Unit for Intern al Vibrator | B 5000 | 5000007522, 5000006307 |
| 915mm/36in Walk-behind Trowel | CT36BDT-E | 5000008010 |
| 50mm/2in Diaphragm Trash Pump | PDT2B | 5000007612, 5000007613 |
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.
