The Wacker Neuson Pump Complete is a genuine OEM assembly designed for the APT8S and APT8T series pumps, including surge brake, electric brake, and cold weather variants. As a factory-sourced component, this assembly meets the exact specifications set by Wacker Neuson, ensuring a direct drop-in replacement with no guesswork on compatibility. The is confirmed to fit both standard and cold weather configurations across the APT8S and APT8T model lines, covering skid-mounted and trailer-mounted applications. When your pump assembly is worn, leaking, or no longer delivering consistent output, replacing it with the correct OEM unit restores full operation quickly and correctly.
Key Features
- Factory-Matched Flow and Pressure Specs — Sourced directly from Wacker Neuson, this pump assembly is built to the same hydraulic output tolerances as the original, ensuring consistent transfer performance from day one.
- Direct-Fit Assembly — Engineered to install into the existing pump mounting and plumbing connections on APT8S and APT8T models without modification to brackets, hoses, or hardware.
- Broad APT Series Coverage — Fits APT8S (with skid), APT8T (surge brake and electric brake), and all cold weather variants, making this a single part number solution across the APT8 model family.
- Sustained Transfer Output — A failed or worn pump assembly causes loss of prime, reduced flow rate, and uneven fluid transfer; this OEM replacement restores full pumping capacity and operating pressure.
- Brake System Compatibility Preserved — Correct fitment across both surge brake and electric brake configurations ensures the trailer braking system remains properly integrated and fully functional after installation.
The pump complete assembly is the core fluid-moving component in the APT8S and APT8T transfer pump units. It draws fluid from the source and pushes it through the discharge line at the rated flow and pressure, making it the heart of the machine's transfer operation. When the pump assembly degrades — through wear, seal failure, or cavitation damage — output drops, priming becomes inconsistent, and the unit may fail to move fluid altogether, making timely replacement essential to keeping the equipment in service.
Part Details
| Part Number | 5200021738 |
|---|---|
| Brand | Wacker Neuson |
| Part Type | Genuine OEM |
| Description | Pump Complete |
Compatibility & Fitment
| Name | Model | Machine Number |
|---|---|---|
| APT8S Pump w/Skid | APT8S | 5200018987 |
| APT8T Pump, Surge Brake | APT8T | 5200019648, 5200019649 |
| APT8T Pump, Surge Brake, Cold Weather | APT8T CW | 5200019796, 5200019797 |
| APT8S Pump w/Skid, Cold Weather | APT8S CW | 5200019800 |
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.
