The Wacker Neuson 5000030591 is a genuine OEM O-Ring designed for PTS4V and PTK4 series centrifugal trash pumps. As a direct OEM part, it is manufactured to the exact material and dimensional specifications required for a proper seal in these high-demand pumping applications. This O-Ring is confirmed to fit multiple PTS4V configurations, including the PTS4V(I) variant, as well as the PTK4(I) pump kit. Having the correct replacement on hand keeps your pump operating at full capacity and prevents costly fluid loss on the job.
Key Features
- Genuine OEM Seal Material — Manufactured to the precise compound and durometer spec required for the fluid and pressure conditions inside the PTS4V pump housing.
- Drop-In Replacement — Matches the exact cross-section and diameter of the original O-Ring, seating correctly in the factory groove without resizing or modification.
- Broad PTS4V and PTK4 Fitment — Verified for use across PTS4V, PTS4V(I), and PTK4(I) configurations, covering the 100mm/4-inch centrifugal trash pump family.
- Leak Prevention at Critical Joints — A failed or aged O-Ring allows fluid bypass at pump joints, leading to pressure loss and potential pump damage; this replacement restores the integrity of that seal.
- Fluid System Safety — Maintaining a sound O-Ring seal is essential in trash pump applications where bypassing fluids can create hazardous conditions around the pump and worksite.
An O-Ring is a loop-shaped seal that sits in a machined groove between two mating surfaces inside the pump assembly. Its job is to prevent fluid from bypassing a joint or connection point under operating pressure. In a centrifugal trash pump like the PTS4V, O-Rings are exposed to continuous fluid contact, vibration, and pressure cycles that cause the rubber compound to compress, harden, or crack over time. When an O-Ring fails, the result is a visible leak or a drop in pump output — both signs that the seal needs immediate replacement to restore full pumping performance.
Part Details
| Part Number | 5000030591 |
|---|---|
| Old Part Number | 0030591 |
| Brand | Wacker Neuson |
| Part Type | Genuine OEM |
| Description | O-Ring |
Compatibility & Fitment
| Name | Model | Machine Number |
|---|---|---|
| 100mm/4in Centrifugal Trash Pu mp | PTS4V | 5000007691, 5000007683, 5000620971, 5100058546, 5100058545, 5100060386, 5100031221 |
| 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.
