The Wacker Neuson 5200020183 Gasket is a genuine OEM gasket designed for the APT4T and APT4S pump series, including standard, Cold Weather, Electric Brake, and Surge Brake configurations. As a direct OEM replacement, this gasket is manufactured to the exact tolerances required for proper sealing performance in Wacker Neuson's towable diaphragm pump lineup. Compatible across the full APT4T and APT4S model range, part number 5200020183 ensures a correct, leak-free fit without guesswork. Keep a replacement on hand for scheduled service intervals or unexpected seal failures in the field.
Key Features
- OEM-Grade Sealing Material — Manufactured to Wacker Neuson's exact material specification for compression consistency and fluid-tight sealing in pump applications.
- Drop-In Replacement — Engineered to match the original gasket profile, seating correctly against mating surfaces without trimming or fitting adjustments.
- Broad APT Series Compatibility — Fits APT4T (Electric Brake and Surge Brake) and APT4S (standard and Cold Weather) pump models, covering the full towable pump family.
- Prevents Fluid Leaks at Mating Joints — A compromised gasket allows fluid bypass between pump components; replacing it promptly restores full pumping efficiency and protects downstream components.
- Fuel and Fluid System Integrity — Correct gasket material ensures compatibility with the fluids handled by APT series pumps, maintaining a safe, sealed system during operation.
A gasket creates a static seal between two mating surfaces within the pump assembly, preventing fluid from leaking past the joint under pressure. In a diaphragm pump like the APT4T and APT4S series, maintaining an effective seal at every joint is critical to sustaining prime and delivering consistent flow rates. When a gasket degrades, cracks, or is compressed beyond its service life, it allows fluid to bypass the intended flow path, reducing pump output and potentially introducing contamination into connected systems.
Part Details
| Part Number | 5200020183 |
|---|---|
| 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.
