The Wacker Neuson 5200020079 is a genuine OEM Gasket designed for the APT4T and APT4S series pumps, including Electric Brake, Surge Brake, standard, and Cold Weather configurations. As a direct-from-manufacturer component, this gasket is produced to the exact material and dimensional specifications required for a leak-free seal in these trailer-mounted pump units. Wacker Neuson genuine OEM parts are the surest way to restore your pump to proper working condition and keep it running as intended. Fitment covers the full APT4T and APT4S lineup, making 5200020079 the correct gasket choice across all variants in this pump family.
Key Features
- OEM Material Integrity — Manufactured to Wacker Neuson's specified compound and compression tolerances for a consistent, fluid-tight seal every time the joint is assembled.
- Drop-In Replacement — Matches the original gasket profile exactly, seating correctly against mating surfaces without trimming or shimming.
- Broad APT4T and APT4S Coverage — A single part number fits Electric Brake, Surge Brake, standard skid, and Cold Weather variants across both pump series.
- Leak Prevention — A correctly seated gasket maintains the pressure boundary between pump components; a deteriorated or damaged gasket leads to fluid loss, pressure drop, and potential pump damage.
- Fuel and Fluid System Compliance — Using a genuine OEM gasket in fuel or fluid-contact joints ensures the correct chemical resistance, which matters for long-term seal integrity in demanding pump applications.
A gasket creates a static seal between two mating surfaces — typically a housing face, cover plate, or flange — preventing fluid or pressure from escaping the joint. In trailer-mounted pump units like the APT4T and APT4S, gaskets protect critical fluid pathways and maintain the operating pressure needed for efficient water transfer. When a gasket degrades, compresses unevenly, or cracks, it allows leaks that reduce pump output, contaminate surrounding components, and can escalate into more extensive damage if left unaddressed.
Part Details
| Part Number | 5200020079 |
|---|---|
| Brand | Wacker Neuson |
| Part Type | Genuine OEM |
| Description | Gasket |
Compatibility & Fitment
| Name | Model | Machine Number |
|---|---|---|
| APT4T Pump, Electric Brake | APT4T | 5200019644, 5200019643 |
| APT4S Pump w/Skid | APT4S | 5200018977 |
| APT4S Pump w/Skid, Cold Weather | APT4S CW | 5200019798 |
| APT4T Pump, Electric Brake, Cold Weather | APT4T CW | 5200019793, 5200019792 |
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.
