The Wacker Neuson 1/2-13 Nut is a genuine OEM fastener designed for the PDT3A, PDI3A, PDI3A(I), PDT2A, and PDI2A(I) diaphragm pump series. Sourced directly from Wacker Neuson, this part meets the exact dimensional and material standards specified for these machines. Keeping the correct hardware in place ensures structural integrity across pump assemblies where fastener grade and thread specification are critical. Confirm your model number before ordering — this nut is verified for the pump models listed above.
Key Features
- Correct Thread Specification: — Machined to a 1/2-13 UNC thread profile, ensuring full thread engagement and proper torque retention in pump assembly applications.
- Genuine OEM Part: — Supplied by Wacker Neuson as part number 5100075637, built to the same material and dimensional spec as the original hardware.
- Broad Pump Series Coverage: — Fits PDT3A, PDI3A, PDI3A(I) Pump Diaphragm, PDT2A, and PDI2A(I) Pump models, covering both standard and diaphragm-specific variants.
- Fastener Integrity Where It Counts: — A correctly rated nut holds critical pump components under operational load and vibration; an undersized or incorrect fastener risks loosening, leaks, or component failure.
- Direct Drop-In Replacement: — Matches the original thread size and bearing surface of the factory hardware, installing without modification on compatible pump assemblies.
A 1/2-13 nut is a standard coarse-thread hex fastener used to secure bolted connections throughout pump assemblies and structural joints. Its role is to clamp mating components together under the correct clamping load, preventing movement, vibration-induced loosening, and fluid leaks at sealed interfaces. When a nut is stripped, corroded, or incorrect for the thread specification, it compromises the holding strength of the entire fastened joint — making an exact-spec replacement essential for safe and dependable pump operation.
Part Details
| Part Number | 5100075637 |
|---|---|
| Brand | Wacker Neuson |
| Part Type | Genuine OEM |
| Description | 1/2-13 Nut |
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.
