The Wacker Neuson Ring Seal is a genuine OEM component designed for the PT2 and PT3 series self-priming centrifugal trash pumps. This includes PT2A, PT2B, PT2H, PT2R, PT2V, PT2Y, PT3A, PT3H, PT3V, PT3Y, and base PT2 and PT3 models across a wide range of configurations. As a direct OEM part, the is sourced and manufactured to Wacker Neuson's original specifications, ensuring proper sealing performance in demanding pump applications. Cross-reference your model number before ordering to confirm fitment across this extensive PT-series lineup.
Key Features
- OEM Sealing Integrity — Manufactured to Wacker Neuson's original material and dimensional specifications, ensuring the correct compression and sealing performance required in centrifugal pump housings.
- Drop-In Replacement — Seats directly into the pump housing the same way as the original, with no machining or adaptation needed to achieve a proper seal.
- Broad PT-Series Compatibility — Fits PT2 and PT3 pump families across multiple variants including A, B, H, R, V, and Y configurations, as well as PTK2 models.
- Prevents Fluid Bypass and Pressure Loss — A correctly functioning ring seal maintains the pressure differential inside the pump volute; a worn or damaged seal allows water to bypass the impeller, causing reduced flow and loss of prime.
- Fuel and Fluid System Compliance — Using the correct OEM-spec seal material matters in pump applications where chemical compatibility with water, sludge, and suspended solids is essential to long-term sealing performance.
A ring seal in a centrifugal trash pump forms a close-tolerance barrier between the rotating impeller and the pump housing, preventing pressurized fluid from bypassing back to the inlet side. This seal is critical to maintaining priming ability and sustaining consistent discharge pressure and flow rate. When the ring seal wears, becomes deformed, or fails, the pump loses efficiency — often presenting as difficulty maintaining prime, reduced output, or visible fluid leakage around the pump body.
Part Details
| Part Number | 5000078884 |
|---|---|
| Old Part Number | 0078884 |
| Brand | Wacker Neuson |
| Part Type | Genuine OEM |
| Description | Ring Seal |
Compatibility & Fitment
| Name | Model | Machine Number |
|---|---|---|
| PT3H Pump | PT3H | 5000009100, 5000009103, 5000009242, 5100014963, 5100014964 |
| PT2H Pump | PT2H | 5000009094, 5000009097, 5000009239, 5200007593 |
| 75mm/3in Centrifugal Trash Pum p | PT3A | 5000009098, 5000009101, 5000009240, 5000620800, 5100058535, 5100058536 |
| PT2A Pump | PT2A | 5000009092, 5000009095, 5000009237, 5000006720, 5000006721, 5100058524, 5100058525 |
| PT3 Pump | PT3 | 5000009321, 5000620726, 5000009322, 5000009323 |
| PT2 Pump | PT2 | 5000009318, 5000620725, 5000009319, 5000009320 |
| 50mm/2in Centrifugal Trash Pum p | PT2Y | 5000007117 |
| 75mm/3in Centrifugal Trash Pum p | PT3Y | 5000007118, 5000007119 |
| 50mm/2in Centrifugal Trash Pum p | PT2B | 5000006722 |
| 50mm/2in Centrifugal Trash Pum p | PT2R | 5000007160, 5000006790 |
| 50mm/2in Centrifugal Trash Pum p | PT2V | 5000009238, 5000009093, 5000009096 |
| 75mm/3in Centrifugal Trash Pum p | PT3V | 5000009102, 5000009241 |
| 50mm/2in Centrifugal Trash Pum p (without engine) | PTK2 | 5000006767 |
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.
Wacker Neuson