The Wacker Neuson 3/8-16x2 Stud is a genuine OEM component designed for PDT3A, PDI3A, PDI3A(I), PDT2A, and PDI2A(I) series diaphragm pumps. As a direct OEM replacement, this stud is manufactured to exact Wacker Neuson specifications, ensuring a correct, secure fit without guesswork. It is the same part shipped in new Wacker Neuson equipment, giving you confidence that it will seat and torque as intended. If you are servicing or rebuilding one of these pump models, verifying you have the right stud — part number — is the first step to a solid, leak-free assembly.
Key Features
- Correct Thread Spec for Diaphragm Pump Assemblies — 3/8-16x2 thread form matches the original fastener point precisely, so mating components clamp down evenly without thread mismatch or cross-threading risk.
- Genuine OEM Sourcing — Sourced directly from Wacker Neuson, this stud meets the same dimensional and material standards as the stud installed at the factory, with no substitutions in grade or finish.
- Broad Pump Series Coverage — Compatible with PDT3A, PDI3A, PDI3A(I) Pump Diaphragm, PDT2A, and PDI2A(I) Pump models, making it the right choice across multiple Wacker Neuson diaphragm pump configurations.
- Structural Integrity Under Pump Operating Loads — A worn, stripped, or incorrect stud can allow pump housings and diaphragm covers to work loose under vibration and pressure, leading to fluid leaks or diaphragm failure. The correct stud maintains the clamping force needed to keep the assembly tight.
- Fuel and Fluid System Safety — In diaphragm pump applications, fastener integrity directly affects the seal between fluid-contact surfaces. Using the specified OEM stud helps ensure no unintended leakage path is introduced at the fastener joint.
A stud fastener serves as a fixed threaded anchor point in an assembly, replacing a conventional bolt by remaining threaded into one component permanently while a nut is torqued down from the other side. In diaphragm pump construction, studs like the 5100075625 are used to clamp pump housings, diaphragm plates, and cover assemblies together under consistent, even load. When a stud is stripped, corroded, or of the wrong thread specification, the clamping pressure across the diaphragm joint becomes uneven, which can cause the diaphragm to tear prematurely or allow pumped fluid to bypass the sealing surfaces — both of which take the pump out of service.
Part Details
| Part Number | 5100075625 |
|---|---|
| Brand | Wacker Neuson |
| Part Type | Genuine OEM |
| Description | 3/8-16x2 Stud |
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.
