The Wacker Neuson is a genuine OEM Flapper Valve Gasket designed for the PDT2, PDT2A, PDI2, and PDI2A series 50mm/2-inch diaphragm trash pumps. Sourced directly from Wacker Neuson, this part is manufactured to the same specification as the original component installed at the factory. It is compatible across multiple pump configurations in the PDT2 and PDI2 families, making it a reliable choice for scheduled maintenance or emergency valve replacement. Confirm your model number against the fitment list before ordering to ensure an accurate match.
Key Features
- Genuine OEM Sealing Integrity — Manufactured to exact material and compression specifications for the flapper valve assembly, ensuring a proper airtight and fluid-tight seal within the valve chamber.
- Direct Drop-In Replacement — Designed to seat correctly within the existing flapper valve housing on PDT2, PDT2A, PDI2, and PDI2A pumps without rework or fitment issues.
- Broad PDT2/PDI2 Family Fitment — Covers both inline (PDI2, PDI2A) and standard (PDT2, PDT2A) 50mm/2-inch diaphragm trash pump variants across multiple machine numbers.
- Restores Full Pump Flow Efficiency — A worn or damaged flapper valve gasket allows backflow past the valve, robbing the pump of suction and discharge pressure; this replacement restores correct one-way valve action.
- Fluid System Compliance — As a gasket within the pump's fluid pathway, using the correct OEM-spec material prevents premature degradation from contact with water, mud, and slurry common in trash pump applications.
The flapper valve gasket seals the flapper valve within the pump's check valve assembly, ensuring fluid moves in one direction only — from intake to discharge. When this gasket wears, cracks, or loses its seal, the pump loses prime, suction pressure drops, and discharge flow becomes weak or intermittent. Replacing the 5000119321 Flapper Valve Gasket restores the valve's ability to hold pressure between strokes, keeping the diaphragm pump operating at full capacity.
Part Details
| Part Number | 5000119321 |
|---|---|
| Old Part Number | 0119321 |
| Brand | Wacker Neuson |
| Part Type | Genuine OEM |
| Description | Flapper Valve Gasket |
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.
