The Wacker Neuson TPE Diaphragm is a genuine OEM replacement built for the PDT3, PDT3A, PDI3, and PDI3A series 75mm/3in diaphragm and inline diaphragm trash pumps. As a direct OEM part, the meets Wacker Neuson's original material and dimensional specifications, ensuring correct fitment across the full range of compatible pump models. This thermoplastic elastomer diaphragm is a critical wear component and keeping a spare on hand helps maintain uninterrupted pump operation on demanding jobsites.
Key Features
- TPE Material Grade: — Thermoplastic elastomer construction delivers the flexibility and chemical resistance required for sustained diaphragm pump operation in trash and slurry applications.
- Genuine OEM Part: — Sourced directly from Wacker Neuson, this diaphragm matches the original part's dimensions, port geometry, and material specification for a drop-in installation.
- Broad Series Compatibility: — Fits PDT3, PDT3A, PDI3, and PDI3A 75mm/3in diaphragm trash pumps across multiple machine configurations — confirm your model number before ordering.
- Maintains Pump Prime and Flow: — A correctly seated diaphragm sustains the reciprocating action needed to self-prime and move high-solids water; a cracked or fatigued diaphragm causes loss of prime and output pressure drop.
- Fluid-Path Integrity: — Proper diaphragm condition is essential to prevent bypass leakage between the fluid and air chambers, protecting pump internals and sustaining rated discharge performance.
The diaphragm is the pumping element at the heart of a diaphragm trash pump. It flexes back and forth under air pressure to draw fluid in through the inlet valve and push it out through the discharge valve — moving water and solids without a rotating impeller contacting the media. Because the diaphragm is in constant flexing contact with pumped fluid, it is a routine wear item; a fatigued, torn, or hardened diaphragm will cause the pump to lose prime, deliver reduced flow, or fail to discharge entirely. Replacing the diaphragm with the correct OEM-spec part restores full pumping performance and protects the valve and housing components from the stress of compensating for a failing membrane.
Part Details
| Part Number | 5000089596 |
|---|---|
| Old Part Number | 0089596 |
| Brand | Wacker Neuson |
| Part Type | Genuine OEM |
| Description | TPE Diaphragm |
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 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.
