The Wacker Neuson 5200019865 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 factory-sourced component, it is manufactured to the same tolerances and material specifications as the original part installed at the factory. This gasket is confirmed to fit across the full APT4T and APT4S lineup, covering both skid-mounted and trailer-mounted pump variants in standard and cold-weather builds.
Key Features
- OEM-Grade Sealing Material — Manufactured to the precise compression and chemical-resistance properties required for pump sealing applications, ensuring no fluid bypass at mating surfaces.
- Drop-In Replacement — Matches the original gasket profile exactly, seating correctly between mating surfaces without trimming, shimming, or additional prep work.
- Broad APT4T and APT4S Fitment — Verified for APT4T Pump with Electric Brake, APT4T Pump with Surge Brake, APT4S Pump with Skid, and all corresponding Cold Weather variants.
- Maintains Pump Integrity Under Pressure — A correctly seated gasket prevents leaks that would otherwise allow fluid loss, pressure drop, or contamination ingress — keeping pump output consistent through demanding jobsite cycles.
- Fuel and Fluid System Compliance — Proper gasket replacement is essential in pump fluid circuits; using a correctly spec'd OEM gasket prevents seepage that can create hazardous conditions around fuel or fluid handling equipment.
A gasket forms a static seal between two mating surfaces — such as a pump housing, cover plate, or manifold face — preventing fluid or pressure from escaping the assembly. In pump applications, even minor gasket degradation can allow fluid to bypass internal passages, causing pressure loss, external leaks, or contamination of surrounding components. Replacing a worn or damaged gasket with a correctly spec'd OEM part restores the integrity of the sealed joint and allows the pump to operate at its intended output and efficiency.
Part Details
| Part Number | 5200019865 |
|---|---|
| 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.
