The Wacker Neuson Mechanical Seal is a genuine OEM component designed for PSC42203 and PSC42303EX series submersible pumps. As a direct factory replacement, this seal is engineered to the exact material grade and dimensional tolerances required by Wacker Neuson for these pump models. Sourcing the correct OEM seal ensures the pump's internal rotating assembly stays properly protected against fluid ingress and pressure loss. Confirm your model number before ordering to ensure a correct, trouble-free installation.
Key Features
- OEM-Grade Sealing Material — Manufactured to Wacker Neuson's specified material grade, delivering the compression rating and chemical resistance demanded by submersible pump duty cycles.
- Drop-In Installation — Engineered to the exact shaft diameter and housing dimensions of the PSC42203 and PSC42303EX, seating directly into the existing seal cavity without modification.
- Compatible with PSC42203 and PSC42303EX Submersible Pumps — Verified fitment across both models in the PSC submersible pump family, including the EX-rated PSC42303EX variant.
- Protects Pump Motor and Impeller — A correctly functioning mechanical seal keeps water and slurry from migrating into the motor housing, preserving pump output and preventing premature motor failure.
- Fluid Containment Safety — In submersible pump applications, a failed mechanical seal can allow pumped fluid to contaminate the motor windings, creating electrical hazards; replacing a worn seal promptly is a critical safety measure.
A mechanical seal is the primary barrier between the wet end of a submersible pump — where the impeller moves fluid — and the sealed motor chamber that must stay dry. It consists of a pair of precision-lapped mating faces held in contact by spring pressure, creating a near-zero-leakage interface around the rotating shaft. When the seal faces wear, score, or distort, fluid begins migrating along the shaft into the motor housing, leading to winding damage, loss of pumping performance, and eventual motor failure. Replacing a worn mechanical seal with the correct OEM part restores the integrity of this barrier and extends the service life of the pump.
Part Details
| Part Number | 5000176929 |
|---|---|
| Old Part Number | 0176929 |
| Brand | Wacker Neuson |
| Part Type | Genuine OEM |
| Description | Mechanical Seal |
Compatibility & Fitment
| Name | Model | Machine Number |
|---|---|---|
| 3~Submersible Pumps | PSC42203 | 5000620469 |
| 3~Submersible Pumps | PSC42303EX | 5000620472 |
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.
