The Wacker Neuson 5000180255 is a genuine OEM Flapper Valve Gasket designed for the PDT2, PDT2A, PDT3A, PDI2A(I), PDI3A, and PDI3A(I) series diaphragm pumps. As a factory-sourced component, this gasket meets the exact material and dimensional specifications required for proper valve sealing in Wacker Neuson's diaphragm pump lineup. Correct fitment is confirmed across multiple machine numbers in the PDT and PDI families, making 5000180255 a reliable, direct-fit solution for scheduled service or unplanned repairs. Keep this part on hand to restore pump efficiency and prevent fluid bypass at the valve seat.
Key Features
- Genuine OEM Sealing Integrity — Manufactured to Wacker Neuson's exact material grade and compression profile for the flapper valve assembly, ensuring a leak-free seat every time.
- Direct-Fit Replacement — Engineered to drop into the existing valve housing without modification, maintaining the original valve stroke and flow dynamics of the pump.
- Broad PDT and PDI Family Coverage — Confirmed fitment across PDT2, PDT2A, PDT3A, PDI2A(I), PDI3A, and PDI3A(I) diaphragm pump models.
- Restores Full Pump Output — A worn or cracked flapper valve gasket causes fluid bypass and loss of prime; replacing it brings suction and discharge performance back to spec.
- Fluid-System Safety Compliance — A properly sealed flapper valve prevents unintended fluid leakage at the valve body, keeping the pump's fluid path fully contained during operation.
The flapper valve gasket seals the interface between the flapper valve and its seat inside a diaphragm pump, creating the one-way pressure boundary that allows the pump to draw fluid on the intake stroke and push it forward on the discharge stroke. Without an intact gasket, fluid bleeds back past the valve, robbing the pump of suction pressure and reducing overall flow rate. Over time, chemical exposure, abrasion from solids in the fluid stream, and repeated pressure cycling cause the gasket to harden, crack, or deform — symptoms that show up as reduced output, difficulty priming, or complete loss of prime.
Part Details
| Part Number | 5000180255 |
|---|---|
| Old Part Number | 0180255 |
| Brand | Wacker Neuson |
| Part Type | Genuine OEM |
| Description | Flapper Valve Gasket |
Compatibility & Fitment
| Name | Model | Machine Number |
|---|---|---|
| PDI2A(I) | PDI2A(I) | 5000620772, 5100075511 |
| PDT2A | PDT2A | 5000620769, 5100075510 |
| PDT2 Pump, Diaphragm | PDT2 | 5000620770 |
| PDT3A | PDT3A | 5100075507 |
| PDI3A | PDI3A | 5100075508 |
| PDI3A(I) PUMP DIAPHRAGM | PDI3A(I) | 5100075509 |
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.
