The Wacker Neuson Fuel Pump Complete is a genuine OEM component designed for the APT4S and APT4T series water pumps, including standard, cold weather, surge brake, and electric brake configurations. Sourced directly through Wacker Neuson's parts program, this assembly meets the same specifications as the original unit installed at the factory. It covers a wide range of APT series variants — from the APT4S Pump with Skid to the APT4T cold weather electric and surge brake models — so you can order with confidence knowing the fitment has been verified. Drop it in as a direct replacement and get your pump back on the job without the guesswork.
Key Features
- Genuine OEM Fuel Delivery Integrity — Built to the same flow and pressure characteristics as the original pump assembly, ensuring consistent fuel delivery to the engine under load.
- Complete Assembly Ready to Install — Supplied as a complete fuel pump unit, so there's no sourcing individual sub-components — just remove the old pump and bolt in the new one.
- Broad APT Series Coverage — Fits APT4S and APT4T models across standard, cold weather, surge brake, and electric brake configurations for maximum parts inventory efficiency.
- Protects Engine Performance — A failing fuel pump starves the engine of fuel, causing hard starts, rough running, and stalling under load; replacing it with the correct OEM assembly restores full, steady power output.
- Fuel System Safety Compliance — As a genuine OEM fuel system component, this pump is built to Wacker Neuson's original sealing and pressure standards, reducing the risk of fuel leaks in demanding site conditions.
The fuel pump is responsible for drawing fuel from the tank and delivering it at the correct pressure and volume to the engine's carburetor or fuel system. Without a properly functioning pump, the engine receives an inconsistent or insufficient fuel supply, leading to loss of power, erratic operation, or failure to start. When a fuel pump begins to wear — losing prime, leaking, or delivering weak flow — replacing it promptly with a correctly spec'd unit like the Wacker Neuson 5200020177 is the fastest way to restore dependable operation.
Part Details
| Part Number | 5200020177 |
|---|---|
| Brand | Wacker Neuson |
| Part Type | Genuine OEM |
| Description | Fuel Pump Complete |
Compatibility & Fitment
| Name | Model | Machine Number |
|---|---|---|
| APT4S Pump w/Skid | APT4S | 5200018977 |
| APT4T Pump, Surge Brake | APT4T | 5200019643, 5200019644 |
| APT4T Pump, Surge Brake, Cold Weather | APT4T CW | 5200019792, 5200019793 |
| APT4S Pump w/Skid, Cold Weather | APT4S CW | 5200019798 |
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.
