The Wacker Neuson 119412 O-Ring is a genuine OEM sealing component designed for the PT2, PT3, PT6Y, and PTS4V series self-priming centrifugal trash pumps. As a factory-sourced part, it meets the exact material and dimensional specifications required to maintain a proper fluid-tight seal within the pump assembly. This O-Ring fits a wide range of PT-series variants including PT2A, PT2H, PT2V, PT3A, PT3H, PT3V, PT6Y, PT6YT, and PTS4V models, making it a versatile service item for fleets running multiple pump configurations. Keeping this seal in good condition is essential to sustaining pump suction, preventing leaks, and protecting internal pump components from contamination.
Key Features
- Genuine OEM Sealing Material — Manufactured to Wacker Neuson's exact compound and durometer specifications, ensuring the correct compression and chemical resistance for pump fluid contact.
- Drop-In Fit for PT-Series Pump Assembly — Seats directly into the existing groove without trimming or reshaping, maintaining a consistent and leak-free interface between mating surfaces.
- Broad PT-Series Compatibility — Confirmed fit across PT2, PT3, PT6Y, and PTS4V pump families, covering 2-inch, 3-inch, and 4-inch discharge configurations in A, H, V, and Y variants.
- Sustains Prime and Suction Performance — A compromised O-Ring allows air infiltration that breaks pump prime; a fresh 119412 restores full suction head and consistent flow output.
- Fluid Containment Integrity — On a pump handling site water, slurry, or chemical-laden fluid, a correctly seated O-Ring prevents external leakage that can create hazardous conditions around the pump housing.
An O-Ring in a centrifugal trash pump acts as a static seal between two mating pump components — typically around the volute casing, inspection port, or suction/discharge interface. It creates a pressurized barrier that prevents air from being drawn into the fluid path and stops pumped liquid from escaping at the joint. When an O-Ring ages, dries out, or becomes compressed permanently, it loses its ability to conform to the mating surface, leading to air leaks that destroy prime, reduced discharge pressure, and visible fluid seepage around the pump body. Replacing it with the correct factory part restores the pump's ability to self-prime quickly and run at full rated capacity.
Part Details
| Part Number | 119412 |
|---|---|
| Brand | Wacker Neuson |
| Part Type | Genuine OEM |
| Description | O-Ring |
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, 5100058524, 5100058525 |
| PT3 Pump | PT3 | 5000009321, 5000620726, 5000009322, 5000009323 |
| PT2 Pump | PT2 | 5000009318, 5000620725, 5000009319, 5000009320 |
| 50mm/2in Centrifugal Trash Pum p | PT2V | 5000009238, 5000009093, 5000009096 |
| 75mm/3in Centrifugal Trash Pum p | PT3V | 5000009102, 5000009241 |
| PTS4V | PTS4V | 5100058545, 5100058546, 5100060386 |
| PT6Y | PT6Y-SA | 5100070835 |
| PT6YT | PT6YT | 5100070966 |
| PUMP PT6Y-AU | PT6Y-AU | 5100076956 |
| PT6YT | PT6YT-IN | 5100077923 |
| PT6Y | PT6Y | 5100064168, 5100069617 |
| PT6Y | PT6Y EPA T4 | 5100073464 |
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.
