The Wacker Neuson Mechanical Seal is a genuine OEM component designed for PTS4V and PTK4 series self-priming centrifugal trash pumps. As a direct factory replacement, this seal maintains the critical barrier between the pump's wet end and the drive assembly, ensuring no leakage path develops during operation. It is confirmed to fit multiple PTS4V and PTK4(I) pump configurations, making it a go-to service part for contractors and rental fleets running Wacker Neuson 4-inch trash pumps. When it comes to pump internals, using the correct OEM part matters — and part number is the right seal for the job.
Key Features
- OEM-Grade Seal Materials — Manufactured to Wacker Neuson's original material and dimensional specifications, delivering the correct face hardness, carbon/ceramic pairing, and elastomer compound for trash pump service conditions.
- Drop-In Shaft Fit — Engineered to seat directly onto the pump shaft and impeller housing without reworking or shimming, matching the original installation envelope of the PTS4V pump end.
- Broad PTS4V and PTK4 Compatibility — Verified fitment across multiple PTS4V pump variants and the PTK4(I) pump kit, covering a wide range of Wacker Neuson 4-inch trash pump configurations.
- Leak Prevention at the Pump Wet End — A functioning mechanical seal keeps pumped fluid from migrating toward the engine or motor bearing cavity; a worn or failed seal causes visible shaft leakage, loss of prime, and accelerated bearing damage.
- Genuine OEM Part — Sourced directly through the Wacker Neuson parts network, carrying the same part number — 5000110443 — used by authorized Wacker Neuson service centers.
A mechanical seal is the dynamic sealing element located at the point where the pump shaft passes through the pump casing. It uses two precision-lapped mating faces — one rotating with the shaft, one stationary in the housing — to create a near-zero-leakage barrier that keeps pumped liquid contained within the wet end of the pump. In a trash pump handling abrasive slurries, sediment-laden water, or debris-heavy liquids, the seal faces are under constant wear load, and a degraded seal will allow fluid to leak past the shaft, contaminate the bearing housing, and ultimately lead to pump failure if left unaddressed. Replacing the mechanical seal at the first sign of shaft weeping or during routine service intervals is the most cost-effective way to extend pump service life.
Part Details
| Part Number | 5000110443 |
|---|---|
| Old Part Number | 0110443 |
| Brand | Wacker Neuson |
| Part Type | Genuine OEM |
| Description | Mechanical Seal |
Compatibility & Fitment
| Name | Model | Machine Number |
|---|---|---|
| 100mm/4in Centrifugal Trash Pu mp | PTS4V | 5000007691, 5000007683, 5000620971, 5100031221, 5100058545, 5100058546, 5100060386 |
| PTK4(I)-PUMP KIT | PTK4 | 5000007692 |
| PTS4V(I) Pump | PTS4V(I) | 5000620972 |
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.
