The Wacker Neuson 5200021968 is a genuine OEM Gasket & O-Ring Set designed for PST3 750 and PSTF3 750 series submersible pumps. As a direct OEM replacement, every seal and gasket in this set is manufactured to the same specifications as the original components, ensuring a proper fit across all covered PST3 750 and PSTF3 750 variants including 110V and 220V/60Hz configurations. Replacing worn or damaged seals promptly keeps the pump operating at full capacity and prevents water intrusion into motor and housing cavities. Keep part number 5200021968 on hand as a standard service item whenever pump maintenance or impeller-side disassembly is performed.
Key Features
- OEM Sealing Material Grade — Each gasket and O-ring is produced to Wacker Neuson's original compound and durometer specifications, delivering the same compression and chemical resistance as the factory-installed seals.
- Complete Set for Full Service — Includes all gaskets and O-rings needed for a thorough pump service, so technicians can reseal the entire assembly in a single pass without hunting for individual components.
- Broad PST3 / PSTF3 Compatibility — Confirmed fit across PST3 750 and PSTF3 750 submersible pump models, including 110V and 220V/60Hz variants with 1 hp motors and 33-foot cord configurations.
- Leak Prevention at the Source — Degraded seals allow pumped water to migrate into motor windings and housing joints; a fresh set restores the pressure barrier that keeps internal components dry and protected.
- Critical for Electrical Safety — Submersible pump seals are the primary defense against water reaching live electrical components; using correctly specified OEM seals maintains the integrity of the motor's water-tight enclosure.
Gaskets and O-rings in a submersible pump form the watertight barriers between the pump's wet-end components — the impeller housing, volute, and motor casing — and the electrical motor assembly. Over time, exposure to abrasive slurry, chemical contaminants, and repeated thermal cycling causes these seals to compress, crack, or harden, allowing water to bypass them. When a seal fails in a submersible pump, moisture reaches the motor windings or bearing cavity, which can lead to electrical failure or accelerated bearing wear. Replacing the full Gasket & O-Ring Set at each major service interval restores the pump's designed fluid boundaries and extends motor service life.
Part Details
| Part Number | 5200021968 |
|---|---|
| Brand | Wacker Neuson |
| Part Type | Genuine OEM |
| Description | Gasket & O-Ring Set |
Compatibility & Fitment
| Name | Model | Machine Number |
|---|---|---|
| PSTF3 750 | PSTF3750 | 5000620441, 5000620338 |
| PST3 750 Sub. Pump, 220V/60hz, 1hp, 33' Cord, 4.7A | PST3750 | 5000620337, 5000620440, 5000620454, 5000620457 |
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.
