The Wacker Neuson 5100044385 is a genuine OEM Flange Bolt designed for PT3A, PT3A(I), PT4A, and PT4A(I) series self-priming centrifugal trash pumps. Sourced directly from Wacker Neuson, this fastener meets the exact dimensional and material standards specified for these pump models. It is a direct replacement for the original hardware, ensuring a correct, secure fit without the guesswork of sourcing a generic substitute. Whether you are performing routine maintenance or restoring pump integrity after service, part number 5100044385 is the correct component for the job.
Key Features
- Genuine OEM Fastener Grade — Manufactured to Wacker Neuson's specified thread pitch, shank diameter, and flange geometry — critical for maintaining proper clamping load on pump housings and covers.
- Drop-In Hardware Replacement — Engineered to seat flush with the integrated flange collar, distributing load evenly across the mating surface without the need for a separate washer.
- Confirmed Fitment for PT3A and PT4A Families — Verified for PT3A, PT3A(I), PT4A, and PT4A(I) trash pump models, covering both standard and indirect configurations.
- Structural Integrity Where It Counts — A correctly torqued flange bolt keeps pump casings, volutes, and access covers sealed under operating pressure; a failed or stripped bolt can result in leaks, loss of prime, and pump damage.
- Corrosion-Resistant Construction — Built to withstand the wet, abrasive environments typical of trash pump operation on construction and dewatering sites.
A flange bolt is a fastener with an integrated wide-diameter collar beneath the head that acts as a built-in bearing surface, eliminating the need for a separate flat washer. On trash pumps like the PT3A and PT4A series, flange bolts are used to secure housing panels, volute covers, and other structural joints that must remain pressure-tight during operation. When a flange bolt becomes corroded, stripped, or damaged, the clamping force on those joints is compromised — leading to fluid leaks, loss of suction prime, and potential structural failure of the pump assembly. Replacing a worn fastener with the correct OEM-spec bolt restores the designed clamping load and keeps the pump running as intended.
Part Details
| Part Number | 5100044385 |
|---|---|
| Brand | Wacker Neuson |
| Part Type | Genuine OEM |
| Description | Flange Bolt |
Compatibility & Fitment
| Name | Model | Machine Number |
|---|---|---|
| PT3A(I) | PT3A(I) | 5100042614 |
| PT4A | PT4A | 5100042604, 5100042217 |
| PT3A | PT3A | 5100042216 |
| PT4A(I) | PT4A(I) | 5100042615 |
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.
