Plug Set, Top | PT2, PT3, PT4 - 5100 Series

The Wacker Neuson Plug Set is a genuine OEM component designed for the PT2A, PT3A, and PT4A series self-priming centrifugal trash pumps, including the PT2A(I), PT3A(I), and PT4A(I) variants. As a direct OEM replacement, this plug set is sourced and manufactured to the exact specifications Wacker Neuson requires for these pump families — ensuring a correct, secure fit without guesswork. Whether you're performing scheduled maintenance or addressing a leak, having the right plug set on hand keeps your pump sealed and field-ready. Verify your model number against the fitment list to confirm compatibility before ordering.

Key Features

• Genuine OEM Sealing Integrity — Manufactured to Wacker Neuson's exact material and thread specifications, so each plug seats and seals the way the pump was originally engineered to perform.
• Direct Drop-In Replacement — Matches the original plug set thread pitch, size, and configuration for a straightforward install on compatible PT-series pumps.
• Broad PT-Series Coverage — Fits PT2A, PT3A, PT4A, PT2A(I), PT3A(I), and PT4A(I) trash pump models, covering a wide range of 2-inch, 3-inch, and 4-inch discharge configurations.
• Maintains Pump Pressure and Flow — A properly seated plug set prevents fluid bypass and pressure loss at service ports, keeping the pump priming efficiently and delivering full discharge performance.
• Fluid System Safety — Correctly installed drain and service plugs prevent unintended fluid release during operation, reducing the risk of spills in sensitive or confined work environments.
• Genuine Part Number Verified — Part number 5100044411 is confirmed against the Wacker Neuson parts catalog for the listed PT-series models, giving you confidence in what you're ordering.

A plug set covers the drain, inspection, or service port openings on a trash pump's volute casing and engine block. These plugs seal critical access points during operation to maintain internal pressure, prevent fluid ingress or egress, and allow controlled drainage during service intervals. When plugs become damaged, corroded, or improperly seated, they can cause fluid leaks, pressure drop, and contamination of the pump's fluid passages — directly impacting priming performance and discharge capacity. Using the correct OEM plug set ensures proper thread engagement and material compatibility with the pump's housing, which is especially important on high-cycle pump applications where vibration can accelerate wear on poorly matched hardware.

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.