The Wacker Neuson is a genuine OEM Retaining Ring designed for the PDT and PDI series diaphragm pumps, including the PDT2A, PDT2, PDT3A, PDT3, PDI2A(I), PDI3A, and PDI3A(I) models. As a factory-sourced component, it meets the exact dimensional and material tolerances specified for these pumps, ensuring a secure, correctly seated fit within the assembly. This retaining ring is the right choice when servicing or rebuilding any of the compatible PDT or PDI diaphragm pump variants listed above.
Key Features
- Genuine OEM Dimensional Accuracy — Manufactured to exact snap-fit specifications for the PDT/PDI pump assembly, ensuring the ring seats and retains components correctly without slippage or play.
- Drop-In Replacement — Installs directly into the retaining groove of compatible diaphragm pumps with no rework to surrounding components required.
- Broad PDT/PDI Series Compatibility — Fits PDT2A, PDT2, PDT3A, PDT3, PDI2A(I), PDI3A, and PDI3A(I) diaphragm pump models across multiple assembly configurations.
- Maintains Pump Integrity — A correctly functioning retaining ring keeps internal pump components properly located; a worn or missing ring can allow axial movement that leads to accelerated internal wear and pump failure.
- Fluid System Safety — In a pump handling liquids, a failed retaining ring risks internal misalignment that can compromise sealing surfaces and lead to uncontrolled fluid leakage — making correct ring replacement a critical service step.
A retaining ring is a precision fastening component that snaps into a machined groove to lock adjacent parts — such as shafts, bearings, or valve assemblies — in their correct axial position. Inside a diaphragm pump, it prevents key internal components from shifting under the repetitive pressure cycles the pump generates during operation. When a retaining ring becomes worn, deformed, or broken, the components it holds in place can migrate out of position, causing increased vibration, accelerated wear on seals and bearings, and ultimately a loss of pump performance or a complete internal failure. Replacing it with the correct OEM part restores the assembly to its original geometry and extends the service life of surrounding components.
Part Details
| Part Number | 5000180273 |
|---|---|
| Old Part Number | 0180273 |
| Brand | Wacker Neuson |
| Part Type | Genuine OEM |
| Description | Retaining Ring |
Compatibility & Fitment
| Name | Model | Machine Number |
|---|---|---|
| PDT2A | PDT2A | 5000620769, 5100075510 |
| PDT2 Pump, Diaphragm | PDT2 | 5000620770 |
| PDI2A(I) | PDI2A(I) | 5000620772, 5100075511 |
| PDT3A | PDT3A | 5000620773, 5100075507 |
| PDT3 | PDT3 | 5000620774 |
| PDI3A | PDI3A | 5000620775, 5100075508 |
| PDI3A(I) | PDI3A(I) | 5000620776, 5100075509 |
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.
