The Wacker Neuson is a genuine OEM Diaphragm designed for the PDT2A, PDI2A, PDT2, and PDI2 series 50mm/2-inch diaphragm trash pumps. As a factory-sourced component, it meets the exact material and dimensional standards of the original part, ensuring correct operation across all covered pump models. This diaphragm fits both standard and inline pump configurations within the PDT2 and PDI2 families, making it the dependable choice when servicing these units in the field.
Key Features
- OEM-Grade Flexure Material — Sourced directly from Wacker Neuson, this diaphragm is manufactured to the precise elastomer specification required for consistent flex cycling under pump operating pressures.
- Drop-In Fit for PDT2 and PDI2 Pump Chambers — Engineered to match the bolt pattern, diameter, and seating geometry of the original diaphragm, allowing straightforward installation without trimming or adaptation.
- Covers Multiple Pump Configurations — Compatible with PDT2A, PDI2A, PDT2, and PDI2 models, including both standard diaphragm trash pump and inline diaphragm trash pump variants.
- Restores Full Pumping Capacity — A worn or cracked diaphragm causes loss of prime, reduced flow, and pump failure. Replacing with part 5000074405 returns the pump to rated output and consistent suction performance.
- Fuel and Fluid Seal Integrity — The diaphragm forms the primary barrier between the fluid chamber and the pump mechanism; using the correct OEM part maintains proper sealing and prevents internal contamination or leakage.
The diaphragm is the core flexing element inside a diaphragm-style trash pump — it moves back and forth to create the suction and discharge action that pulls fluid in and pushes it out. Unlike centrifugal pumps, diaphragm pumps rely entirely on the integrity of this membrane to generate flow, which means a diaphragm that has cracked, stiffened, or lost elasticity will immediately affect prime and output. Over time, exposure to abrasive slurries, chemicals, and repeated flex cycles causes the material to degrade, making the diaphragm one of the most common service items on these pumps.
Part Details
| Part Number | 5000074405 |
|---|---|
| Old Part Number | 0074405 |
| Brand | Wacker Neuson |
| Part Type | Genuine OEM |
| Description | Diaphragm |
Compatibility & Fitment
| Name | Model | Machine Number |
|---|---|---|
| 50mm/2in Diaphragm Trash Pump | PDT2A | 5000007610, 5000007611 |
| 50mm/2in Inline Diaphragm Tras h Pump | PDI2A | 5000007624, 5000007625 |
| 50mm/2in Diaphragm Trash Pump | PDT2 | 5000009494, 5000007633 |
| 50mm/2in Diaphragm Trash Pump | PDI2 | 5000009489 |
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.
