The Wacker Neuson is a genuine OEM Retaining Ring designed for the PDT3A, PDI3A, PDT3, and PDI3 series 75mm/3-inch Diaphragm Trash Pumps. As a direct OEM component, the is manufactured to the same specifications as the original part, ensuring a correct, trouble-free installation with no guesswork on fit or function. This retaining ring is compatible across multiple machine numbers within the PDT3A, PDI3A, PDT3, and PDI3 pump families, making it a reliable choice for both field repairs and scheduled maintenance. Keep a spare on hand to minimize time off the job when servicing your Wacker Neuson diaphragm pump.
Key Features
- Genuine OEM Dimensional Accuracy — Manufactured to exact groove-width and diameter tolerances, so the ring seats and locks securely without play or premature release.
- Drop-In Installation — Matches the original retaining-ring groove profile on PDT3A, PDI3A, PDT3, and PDI3 pump assemblies, snapping into place with standard snap-ring pliers.
- Broad PDx3 Family Coverage — A single part number covers multiple machine configurations across the 75mm/3-inch Diaphragm and Inline Diaphragm Trash Pump lines.
- Keeps Internal Components Properly Located — A functioning retaining ring holds shafts, bearings, and pump internals in their correct axial position; a worn or missing ring allows components to shift, leading to accelerated wear and pump failure.
- Sourced from Wacker Neuson — Supplied as a genuine OEM part, so you can be confident the metallurgy and spring tension match what the pump was engineered around.
A retaining ring — sometimes called a snap ring — is a small but critical fastening component used to secure rotating or sliding parts within a bore or on a shaft, preventing unwanted axial movement. In a diaphragm trash pump like the PDT3 and PDI3 series, the retaining ring holds internal pump components in their designed position so the diaphragm and valve assembly can operate with the correct geometry and loading. When a retaining ring becomes worn, corroded, or displaced, internal parts can shift out of alignment, causing uneven diaphragm wear, loss of prime, or catastrophic internal damage that turns a simple ring replacement into a much larger repair.
Part Details
| Part Number | 5000176066 |
|---|---|
| Old Part Number | 0176066 |
| Brand | Wacker Neuson |
| Part Type | Genuine OEM |
| Description | Retaining Ring |
Compatibility & Fitment
| Name | Model | Machine Number |
|---|---|---|
| 75mm/3in Diaphragm Trash Pump | PDT3A | 5000007614, 5000007615, 5000007616 |
| 75mm/3in Inline Diaphragm Tras h Pump | PDI3A | 5000007628, 5000007629, 5000009407 |
| 75mm/3in Diaphragm Trash Pumps | PDT3 | 5000009495 |
| 75mm/3in Diaphragm Trash Pump | PDI3 | 5000009492 |
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.
