The Wacker Neuson Washer is a genuine OEM component designed for PDT2, PDT3, PDI2, and PDI3 series diaphragm trash pumps, with additional fitment coverage across CRT36 ride-on concrete trowel models. Sourced directly from Wacker Neuson, this washer matches the exact material grade, dimensions, and tolerancing specified for these machines at the factory. Fitment spans both 50mm/2-inch and 75mm/3-inch diaphragm pump configurations across multiple build variants, making this a high-demand service part for pump-heavy fleets.
Key Features
- Genuine OEM Material Spec — Manufactured to Wacker Neuson's original material and dimensional tolerances, ensuring the washer seats and compresses correctly within its assembly — critical for maintaining proper clamping force and preventing leaks.
- Direct Drop-In Replacement — Matches the original hole diameter, outer diameter, and thickness for tool-free fitment in existing pump and trowel assemblies without rework or shimming.
- Broad Diaphragm Pump Coverage — Fits PDT2, PDT2A, PDT2B, PDT3, PDT3A, PDI2, PDI2A, PDI3, and PDI3A series diaphragm trash pumps across numerous build configurations, plus CRT36ASO and CRT36ASN ride-on trowels.
- Maintains Fluid Integrity — A correctly fitted washer prevents fastener loosening and joint seepage in pump assemblies where vibration and fluid pressure are constant — a worn or undersized washer is a common root cause of slow leaks and premature seal failure.
- Verified OEM Part Number — Part number 5000087972 is the active Wacker Neuson catalog reference; cross-check your machine serial tag or parts manual before ordering to confirm the correct variant for your build.
A washer serves as a load-distributing interface between a fastener and the surface it clamps against. In diaphragm pump assemblies — where bolted joints are exposed to continuous vibration, fluid pressure, and thermal cycling — the washer ensures even clamping force across the joint face, protecting threads and mating surfaces from damage and preventing loosening over time. When a washer wears thin, deforms, or is substituted with an incorrect size, fastener tension becomes uneven, accelerating seal wear and increasing the risk of fluid leaks at critical joints.
Part Details
| Part Number | 5000087972 |
|---|---|
| Old Part Number | 0087972 |
| Brand | Wacker Neuson |
| Part Type | Genuine OEM |
| Description | Washer |
Compatibility & Fitment
| Name | Model | Machine Number |
|---|---|---|
| 50mm/2in Diaphragm Trash Pump | PDT2A | 5000007610, 5000007611 |
| 75mm/3in Diaphragm Trash Pump | PDT3A | 5000007614, 5000007615, 5000007616 |
| 50mm/2in Inline Diaphragm Tras h Pump | PDI2A | 5000007624, 5000007625 |
| 75mm/3in Inline Diaphragm Tras h Pump | PDI3A | 5000007628, 5000007629, 5000009407 |
| 50mm/2in Diaphragm Trash Pump | PDT2 | 5000009494, 5000007633 |
| 75mm/3in Diaphragm Trash Pumps | PDT3 | 5000009495, 5000007619 |
| 915mm/36in Ride-On Trowel, ove rlapping | CRT36ASO | 5000007512 |
| 915mm/36in Ride-On Trowel, non #NAME? | CRT36ASN | 5000007513 |
| 50mm/2in Diaphragm Trash Pump | PDI2 | 5000009489 |
| 50mm/2in Diaphragm Trash Pump | PDT2B | 5000007612, 5000007613 |
| 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.
