The Wacker Neuson is a genuine OEM 5/16x3/4 Spring Pin designed for PDT3A, PDI3A, PDI3A(I), PDT2A, and PDI2A(I) series diaphragm pumps. As a direct factory replacement, this spring pin matches the original specification exactly, ensuring correct installation without the guesswork of sourcing an incompatible substitute. Sourced directly through Wacker Neuson's authorized parts network, the delivers the fit and dimensional accuracy that pump-critical fastening components demand.
Key Features
- Genuine OEM Dimensional Accuracy — Manufactured to the original specification for spring pins, ensuring consistent radial tension, correct pin diameter, and reliable retention force within the assembly.
- Drop-In Installation — Sized at 5/16x3/4 to press directly into the original bore, aligning with existing hardware without modification or re-drilling.
- Broad Pump Compatibility — Fits PDT3A, PDI3A, PDI3A(I), PDT2A, and PDI2A(I) Wacker Neuson diaphragm pump models, covering both direct and indirect drive configurations.
- Secure Component Retention — A correctly seated spring pin locks mating parts in their designed position; a worn or missing pin allows unwanted movement that accelerates wear on surrounding components and leads to assembly failure.
- Authorized Parts Quality — Supplied as a genuine Wacker Neuson part, held to the same material and hardness standards as the pin installed at the factory.
A spring pin — sometimes called a roll pin or slotted spring pin — is a hollow, slotted fastener that compresses slightly as it is driven into a bore, using that outward spring tension to grip the surrounding material and lock two components in alignment. In diaphragm pump assemblies, spring pins are commonly used to secure linkage arms, drive components, or housing parts that must stay precisely positioned under continuous reciprocating motion. When a spring pin shears, deforms, or backs out, the components it was holding can shift, causing accelerated wear, misalignment, or a complete loss of pump function — making timely replacement with the correct part essential to keeping the pump running properly.
Part Details
| Part Number | 5100075620 |
|---|---|
| Brand | Wacker Neuson |
| Part Type | Genuine OEM |
| Description | 5/16x3/4 Spring Pin |
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.
