The Wacker Neuson is a genuine OEM O-Ring designed for the PT3, PT3A, PT3H, and PT3V series 75mm/3-inch centrifugal trash pumps. As a factory-sourced component, this O-Ring is manufactured to the exact material and dimensional specifications used in original production, ensuring a proper seal every time. It covers an extensive range of PT3-family machine numbers across multiple build variants, making it a high-confidence choice when servicing any PT3-series pump. Keep a spare on hand — O-Rings are a routine wear item during pump maintenance and rebuilds.
Key Features
- Genuine OEM Sealing Material — Sourced directly from Wacker Neuson, this O-Ring meets the exact compound hardness and compression set resistance specified for PT3-series pump assemblies.
- Drop-In Replacement — Dimensioned to seat correctly in the original groove without trimming or shimming, maintaining the designed sealing interface on reassembly.
- Broad PT3 Family Coverage — Confirmed fitment across PT3, PT3A, PT3H, and PT3V variants, including both gasoline-engine and bare-pump (without engine) configurations.
- Protects Pump Efficiency — A correctly seated O-Ring maintains internal pressure integrity so the pump delivers full suction lift and discharge flow; a deteriorated seal allows air ingestion and cavitation that reduces output and can damage the impeller.
- Fuel and Fluid Compatibility — Formulated to resist degradation from water, debris-laden fluids, and incidental fuel or oil contact common in trash-pump environments.
An O-Ring in a centrifugal trash pump creates a pressure-tight seal between mating pump housing components, preventing air from being drawn into the fluid path and stopping liquid from leaking at joints. When an O-Ring hardens, cracks, or takes a permanent compression set, the pump loses prime quickly, suction performance drops, and fluid can weep from the housing — signs that the seal needs immediate replacement. Swapping the O-Ring at each major service interval is a low-cost step that protects the pump's impeller, volute, and mechanical seal from the secondary damage that air ingestion and external leaks can cause.
Part Details
| Part Number | 5000119408 |
|---|---|
| Old Part Number | 0119408 |
| Brand | Wacker Neuson |
| Part Type | Genuine OEM |
| Description | O-Ring |
Compatibility & Fitment
| Name | Model | Machine Number |
|---|---|---|
| PT3H Pump | PT3H | 5000009100, 5000009103, 5000009242, 5100014963, 5100014964 |
| 75mm/3in Centrifugal Trash Pum p | PT3A | 5000009098, 5000009101, 5000009240, 5000620800, 5100058535, 5100058536 |
| PT3 Pump | PT3 | 5000009321, 5000620726, 5000009322, 5000009323 |
| 75mm/3in Centrifugal Trash Pum p | PT3V | 5000009102, 5000009241 |
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.
