The Wacker Neuson Hexagon Nut is a genuine OEM fastener designed for the PTS4V and PTK4 series centrifugal trash pumps. Sourced directly from Wacker Neuson, this is the exact nut specified for these machines at the time of manufacture — no substitutions, no guesswork. It is compatible across multiple PTS4V configurations, including the PTS4V(I) variant, as well as the PTK4(I) pump kit. When a fastener fails or goes missing during service, replacing it with the correct OEM-grade hardware keeps the assembly torqued and seated to spec.
Key Features
- OEM-Grade Fastener Material — Manufactured to the same hardness and thread specification as the original, ensuring correct torque retention in pump assembly applications.
- Drop-In Installation — Matches the original thread pitch and hex size exactly, so it seats and torques without modification to mating components.
- Broad PTS4V Series Coverage — Fits multiple PTS4V build variants and serial ranges, as well as the PTK4(I) pump kit configuration.
- Structural Integrity Under Load — A correctly spec'd nut maintains clamping force on pump housings and covers that are subject to vibration during high-volume trash pump operation; a wrong-spec or worn nut can allow critical joints to loosen.
- Fuel and Fluid System Safety — Where this fastener secures fluid-path components, using the correct OEM nut prevents joint weepage and maintains a leak-free pump assembly.
A hexagon nut is a standard threaded fastener used to clamp and secure components together by mating with a bolt or stud. In pump assemblies like the PTS4V, fasteners are subject to constant vibration and thermal cycling, making correct thread engagement and material grade essential to maintaining joint integrity. A missing, stripped, or incorrect nut can cause covers, flanges, or mounting brackets to work loose — leading to misalignment, leaks, or unplanned service interruptions.
Part Details
| Part Number | 5000051535 |
|---|---|
| Old Part Number | 0051535 |
| Brand | Wacker Neuson |
| Part Type | Genuine OEM |
| Description | Hexagon Nut |
Compatibility & Fitment
| Name | Model | Machine Number |
|---|---|---|
| 100mm/4in Centrifugal Trash Pu mp | PTS4V | 5000007691, 5000007683, 5000620971, 5100031221, 5100058545, 5100058546, 5100060386 |
| PTK4(I)-PUMP KIT | PTK4 | 5000007692 |
| PTS4V(I) Pump | PTS4V(I) | 5000620972 |
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.
