The Wacker Neuson Fuel Pump Complete is a genuine OEM component designed for the APT4S and APT4T series pumps, including standard, surge brake, electric brake, and cold weather configurations. As a factory-sourced assembly, this part is built to the same specifications as the original, ensuring a direct, drop-in replacement with no guesswork. It covers a broad range of APT4 variants — from the APT4S Pump with Skid to the APT4T cold weather electric and surge brake models — making it the go-to replacement for fleets running multiple configurations. Keep part number on hand to minimize unplanned service interruptions on your pump equipment.
Key Features
- Genuine OEM Fuel Delivery Integrity — Sourced directly from Wacker Neuson, this fuel pump complete matches the original flow rate and pressure characteristics required to keep the engine running cleanly and consistently.
- Complete Assembly, Ready to Install — Supplied as a complete pump unit, so all internal components are pre-matched and balanced — no sourcing individual sub-parts or assembly required.
- Broad APT4 Series Coverage — Fits APT4S and APT4T models across standard, surge brake, electric brake, and cold weather variants, making it a versatile stock item for mixed pump fleets.
- Protects Engine Performance — A worn or failing fuel pump starves the engine of consistent fuel delivery, causing hard starts, rough running, and potential engine damage. Replacing with a correct OEM unit restores proper operation immediately.
- Fuel System Safety Compliance — As a genuine OEM fuel system component, this pump complete meets the original design tolerances for fuel containment and delivery pressure, supporting safe operation on the worksite.
The fuel pump is responsible for drawing fuel from the tank and delivering it to the engine at the correct pressure and flow rate. Without consistent fuel delivery, the engine cannot maintain proper combustion — leading to power loss, hard starting, or complete shutdown. When a fuel pump begins to fail, symptoms typically include erratic engine behavior, stalling under load, or an engine that cranks but will not start; replacing the pump complete restores full fuel system function and gets the machine back to work.
Part Details
| Part Number | 5200020223 |
|---|---|
| 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.
