The Wacker Neuson Suction Port Flange is a genuine OEM component designed for the PDT3, PDT3A, PDI3, PDI3A, and PD3B series 75mm/3-inch diaphragm trash pumps. Sourced directly from Wacker Neuson, this OEM part ensures a correct, leak-free fit at the suction inlet — exactly as the pump was originally engineered. It is a direct match for a wide range of 75mm/3-inch diaphragm pump configurations including inline and standard models across multiple serial number variants. When a replacement is needed, using the factory-correct eliminates guesswork and keeps the pump performing at rated capacity.
Key Features
- OEM-Grade Sealing Integrity — Manufactured to Wacker Neuson's original dimensional and material tolerances, ensuring the suction port seals correctly under operating vacuum and pressure.
- Direct Bolt-On Replacement — Matches the original flange bolt pattern and port diameter on 75mm/3-inch diaphragm pump housings for a straightforward swap with no rework.
- Broad Diaphragm Pump Fitment — Compatible across PDT3A, PDT3, PDI3A, PDI3, and PD3B model families, covering both standard and inline 75mm/3-inch diaphragm trash pump configurations.
- Maintains Full Suction Performance — A correctly fitted suction flange preserves the pump's priming ability and flow rate; a cracked or warped flange introduces air leaks that cause loss of prime and reduced output.
- Genuine Wacker Neuson OEM Part — Part number 5000051296 is an authentic factory component, giving you confidence in material quality and dimensional accuracy from the moment it arrives.
The suction port flange forms the inlet connection point of a diaphragm pump, creating a sealed interface between the suction hose and the pump body. It directs fluid into the pump chamber and must maintain an airtight seal so the diaphragm can generate the vacuum needed to lift and move liquid. When the flange cracks, warps, or its sealing face deteriorates, the pump draws air instead of fluid — resulting in a loss of prime, reduced flow, or a complete inability to pump. Replacing a damaged flange with the correct OEM part restores the suction path and gets the pump back to full working capacity.
Part Details
| Part Number | 5000051296 |
|---|---|
| Old Part Number | 0051296 |
| Brand | Wacker Neuson |
| Part Type | Genuine OEM |
| Description | Suction Port Flange |
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, 5000007619 |
| 75mm/3in Diaphragm Pump | PD3B | 5000006802 |
| 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.
