The Wacker Neuson is a genuine OEM Cotter Pin designed for the PDT2, PDT3, PDI2, and PDI3 series diaphragm trash pumps. Sourced directly from Wacker Neuson, this cotter pin matches the original hardware specification installed at the factory. It is compatible across a wide range of 50mm/2-inch and 75mm/3-inch diaphragm and inline diaphragm trash pump configurations, including PDT2A, PDT2B, PDT3A, PDT3, PDI2A, PDI2, PDI3A, PDI3, and PD3B models. When you need an exact replacement to restore a pump to proper working order, part number is the correct choice.
Key Features
- Genuine OEM Hardware Integrity — Manufactured to the original material and dimensional spec, ensuring the pin seats, locks, and retains components exactly as intended in Wacker Neuson diaphragm pump assemblies.
- Drop-In Installation — Replaces the original cotter pin position-for-position with no reworking of surrounding fasteners or retaining hardware.
- Broad PDT / PDI Series Coverage — Fits 50mm/2-inch and 75mm/3-inch diaphragm and inline diaphragm trash pump models across the PDT2, PDT2A, PDT2B, PDT3, PDT3A, PDT3B, PDI2, PDI2A, PDI3, PDI3A, and PD3B families.
- Prevents Component Loosening Under Load — A correctly installed cotter pin keeps retaining pins and fasteners locked in place during the vibration and cyclic pressure loading that diaphragm pumps generate in continuous pumping operations.
- Safety-Critical Fastener — Cotter pins are the last line of defense against pin walkout in critical pump linkages; using a correct-spec replacement prevents unexpected disassembly of load-bearing joints during operation.
A cotter pin is a small but essential locking fastener used to secure clevis pins, shaft pins, and other retaining hardware in place within mechanical assemblies. In a diaphragm trash pump, cotter pins are typically found in the pump drive linkage and valve retaining hardware, where they prevent pins from backing out under the repetitive reciprocating forces generated during pumping. When a cotter pin is missing, bent beyond reuse, or breaks, the retained pin can walk free, causing sudden disconnection of pump components, accelerated wear on surrounding hardware, and potential pump failure mid-operation. Replacing a worn or failed cotter pin promptly with the correct OEM part restores the mechanical security of the assembly and protects the surrounding components from damage.
Part Details
| Part Number | 5000074393 |
|---|---|
| Old Part Number | 0074393 |
| Brand | Wacker Neuson |
| Part Type | Genuine OEM |
| Description | Cotter Pin |
Compatibility & Fitment
| Name | Model | Machine Number |
|---|---|---|
| 50mm/2in Diaphragm Trash Pump | PDT2A | 5000007610, 5000007611 |
| 75mm/3in Diaphragm Trash Pump | PDT3A | 5000007614, 5000007615, 5000007616 |
| 50mm/2in Inline Diaphragm Tras h Pump | PDI2A | 5000007624, 5000007625 |
| 75mm/3in Inline Diaphragm Tras h Pump | PDI3A | 5000007628, 5000007629, 5000009407 |
| 50mm/2in Diaphragm Trash Pump | PDT2 | 5000009494, 5000007633 |
| 75mm/3in Diaphragm Trash Pumps | PDT3 | 5000009495, 5000007619 |
| 50mm/2in Diaphragm Trash Pump | PDI2 | 5000009489 |
| 75mm/3in Diaphragm Pump | PD3B | 5000006802 |
| 50mm/2in Diaphragm Trash Pump | PDT2B | 5000007612, 5000007613 |
| 75mm/3in Diaphragm Trash Pump | PDI3 | 5000009491, 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.
