The Wacker Neuson is a genuine OEM 1/4-20 x 3/4 hex flange screw designed for the PDT3A, PDI3A, PDI3A(I), PDT2A, and PDI2A(I) pump series. Sourced directly from Wacker Neuson, this fastener matches the exact thread pitch, shank length, and flange geometry specified for these machines. The integrated flange distributes clamping load evenly, eliminating the need for a separate washer and maintaining the secure, vibration-resistant connections that diaphragm pump assemblies depend on. If you're servicing or reassembling a pump in any of these series, part number is the correct OEM fastener for the job.
Key Features
- Correct Thread Engagement — Genuine OEM 1/4-20 threading ensures full, consistent engagement in tapped pump housing bores without the risk of cross-threading or strip-out.
- Built-In Flange Load Distribution — The integral hex flange spreads clamping force across a wider bearing surface, protecting housing material and maintaining joint integrity under operational vibration.
- Direct Replacement for PDT and PDI Pump Series — Fits PDT3A, PDI3A, PDI3A(I) pump diaphragm, PDT2A, and PDI2A(I) pump models with no additional hardware needed.
- Vibration-Resistant Fastening — Sized and torqued to Wacker Neuson specification, this screw holds pump components firmly in place during continuous operation, preventing loosening that could lead to leaks or misalignment.
- Genuine OEM Part — Produced to the same standards as the original fastener installed at the factory, ensuring material grade, head dimensions, and finish are consistent with the original assembly.
A hex flange screw combines a standard hex bolt head with an integrated flanged washer base, allowing it to bear against a surface without a separate washer. In diaphragm pump assemblies like the PDT and PDI series, fasteners like the 5100075619 secure covers, housings, and diaphragm components that must remain tightly sealed against fluid pressure and vibration. A worn, stripped, or incorrect fastener in these locations can allow covers to shift or leak, compromising pump output and potentially causing fluid ingress into areas of the machine not designed to handle it.
Part Details
| Part Number | 5100075619 |
|---|---|
| Brand | Wacker Neuson |
| Part Type | Genuine OEM |
| Description | 1/4-20 x 3/4 Hex Flange Screw |
Compatibility & Fitment
| Name | Model | Machine Number |
|---|---|---|
| PDT3A | PDT3A | 5100075507 |
| PDI3A | PDI3A | 5100075508 |
| PDI3A(I) PUMP DIAPHRAGM | PDI3A(I) | 5100075509 |
| PDT2A | PDT2A | 5100075510 |
| PDI2A(I) PUMP | PDI2A(I) | 5100075511 |
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.
