The Wacker Neuson 5200020157 Gasket is a genuine OEM component designed for the APT4T and APT4S series self-priming trash pumps. As a direct OEM replacement, this gasket is manufactured to the exact material and dimensional specifications required by Wacker Neuson, ensuring a proper seal every time. It fits across multiple configurations within the APT4T and APT4S families, including electric brake, surge brake, skid-mounted, and cold weather variants. When you need to restore a pump to full working condition, using the correct OEM gasket is the straightforward choice.
Key Features
- OEM-Grade Sealing Material — Manufactured to Wacker Neuson's original material specifications, delivering the compression and chemical resistance required for consistent, leak-free pump operation.
- Drop-In Replacement — Matches the original gasket profile exactly, seating correctly against mating surfaces without trimming, shimming, or rework.
- Broad APT4T and APT4S Coverage — Fits electric brake, surge brake, skid-mounted, and cold weather configurations across both pump families in a single part number.
- Maintains Prime and Pressure — A sound gasket keeps suction and discharge chambers sealed, allowing the pump to build and hold prime. A degraded gasket causes pressure loss, air ingestion, and reduced flow output.
- Fluid System Integrity — In a pump handling trash-laden or chemically variable water, a properly rated gasket prevents bypass and contamination of surrounding components — making gasket condition a direct factor in pump longevity.
A gasket forms a static seal between two mating surfaces inside the pump assembly, preventing fluid from bypassing the intended flow path. In a self-priming trash pump like the APT4T and APT4S, the gasket must maintain a reliable seal under repeated pressure cycling and exposure to abrasive or chemically variable water. When a gasket deteriorates — through compression set, cracking, or chemical attack — the pump loses the ability to hold prime, output drops, and internal components become vulnerable to contamination. Replacing a worn gasket promptly is one of the simplest ways to restore full pump performance.
Part Details
| Part Number | 5200020157 |
|---|---|
| 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.
