Wacker Neuson 5100042467 O-Ring

The Wacker Neuson O-Ring is a genuine OEM seal designed for the PT2A and PT2A(I) self-priming centrifugal trash pumps. Sourced directly from Wacker Neuson, this O-Ring matches the exact material grade, durometer, and dimensional profile of the original component installed at the factory. It fits both the standard PT2A and the PT2A(I) variants, making it a straightforward drop-in replacement during routine service or leak repairs. When your pump's sealing integrity is on the line, using the correct OEM part ensures the joint closes completely and holds under working pressure.

Key Features

• OEM-Matched Seal Material — Manufactured to the original compound and compression specification, so the ring seats and deforms exactly as intended when torqued into place.
• Direct Drop-In Fit — Dimensionally identical to the original, seating cleanly into the existing groove without trimming, stretching, or adapting.
• Confirmed PT2A and PT2A(I) Compatibility — Verified fitment across both the PT2A and PT2A(I) trash pump configurations.
• Leak-Free Pump Operation — A properly seated O-Ring maintains the pressure differential the pump needs to self-prime and move high-volume flow; a deteriorated ring causes prime loss, cavitation, and fluid bypass.
• Fluid System Integrity — Correct sealing at every joint prevents unintended fluid escape, which is critical when pumping wastewater, slurry, or chemically active fluids on a worksite.

An O-Ring creates a static or dynamic seal between two mating surfaces by compressing into a machined groove, blocking the path between pressurized fluid and the surrounding environment. In a trash pump like the PT2A, O-Rings are used at housing joints, volute covers, and port connections to maintain the sealed system the impeller relies on to generate suction and discharge pressure. When an O-Ring hardens, cracks, or takes a permanent set over time, it can no longer fill that groove completely — leading to air ingestion, loss of prime, reduced flow, or outright fluid leakage that forces an unplanned shutdown.

Part Details

Compatibility & Fitment

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.