The Wacker Neuson Hose Coupling, 3 NPT is a genuine OEM discharge connection component designed for the PST3 and PSTF3 series submersible pumps. As an authorized OEM part, the is manufactured to the same specifications as the original, ensuring a correct thread-and-bore match at the pump outlet. Compatible across multiple PST3 and PSTF3 configurations — including 110V and 220V/60Hz variants — this coupling covers the full range of common PST3 and PSTF3 field deployments. When your discharge connection is cracked, stripped, or leaking, replacing it with the correct OEM coupling restores full flow integrity and keeps your dewatering operation running at rated capacity.
Key Features
- Genuine OEM Thread Accuracy — 3 NPT threading is dimensionally matched to the factory outlet spec, eliminating the risk of cross-threading or seal failure at the discharge port.
- Direct Drop-In Replacement — Installs directly onto the pump discharge outlet of PST3 and PSTF3 models with no modification to hose or pump body required.
- Broad PST3 and PSTF3 Compatibility — Confirmed fit across 110V and 220V/60Hz pump configurations, covering the most widely deployed PST3 and PSTF3 variants in the field.
- Sustained Discharge Flow — A properly sealed coupling maintains full pump output pressure; a cracked or stripped coupling causes flow loss, backpressure, and site flooding risk.
- Leak-Point Elimination — Replaces a common wear and impact-damage point on submersible trash pumps, restoring a watertight discharge connection at the hose interface.
The hose coupling on a submersible pump is the threaded fitting that connects the pump's discharge outlet to the flexible hose carrying water away from the work area. On PST3 and PSTF3 pumps, this 3 NPT coupling must maintain a pressure-tight seal under continuous pumping loads — any crack, stripped thread, or impact damage at this point causes discharge leakage and reduces the pump's effective output. Replacing a damaged coupling with the correct OEM part, Wacker Neuson 5000176881, restores the sealed discharge path and returns the pump to full dewatering capacity.
Part Details
| Part Number | 5000176881 |
|---|---|
| Old Part Number | 0176881 |
| Brand | Wacker Neuson |
| Part Type | Genuine OEM |
| Description | Hose Coupling, 3 NPT |
Compatibility & Fitment
| Name | Model | Machine Number |
|---|---|---|
| PST3 750 Sub. Pump, 220V/60hz, 1hp, 33' Cord, 4.7A | PST3750 | 5000620337, 5000620440, 5000620457 |
| PSTF3 750 Sub. Pump, 220V/60hz, 1hp, 33' Cord, 4.7A | PSTF3750 | 5000620338, 5000620441 |
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.
