Mechanical Seal | PT2, PT2A

The Wacker Neuson 119784 Mechanical Seal Carbon Ceramic is a genuine OEM component designed for the PT2 series 2-inch self-priming centrifugal trash pumps, including the PT2, PT2A, PT2H, and PT2V models. Sourced directly from Wacker Neuson, this seal matches the exact carbon/ceramic material specification used in original production, ensuring a proper fit within the pump housing. Confirmed fitment spans multiple PT2 series configurations, making this the go-to replacement when your pump develops a shaft seal leak or during a scheduled wet-end rebuild.

Key Features

• Carbon/Ceramic Material Grade — The carbon rotating face paired with a ceramic stationary seat delivers the wear resistance and thermal stability needed in continuous-duty pump applications.
• Genuine OEM Part — Manufactured to Wacker Neuson production standards, this seal interfaces correctly with the pump shaft and volute housing — no shimming or adapting required.
• Broad PT2 Series Coverage — Fits PT2, PT2A, PT2H, and PT2V pump variants, including both engine-mounted and bare pump (without engine) configurations.
• Leak Prevention at the Shaft — A correctly seated mechanical seal keeps pumped fluid out of the bearing cavity. A failed seal allows water and debris ingestion that can destroy the pump shaft and impeller bearings quickly.
• Fuel and Fluid System Integrity — Replacing a worn seal before it fails completely prevents contamination of the crankcase-side components and avoids a much costlier pump rebuild.

A mechanical seal is the dynamic sealing interface between the rotating pump shaft and the stationary pump housing. As the impeller spins, the seal's carbon face rides against the ceramic seat under spring load, creating a fluid-tight barrier that stops pumped water from migrating along the shaft. When the seal faces wear, chip, or the spring loses tension, the pump will begin to weep or actively leak at the shaft — a clear sign that replacement is overdue. Catching and replacing a worn 119784 Mechanical Seal Carbon Ceramic promptly protects the pump's bearings, shaft, and impeller from water damage and keeps the PT2 series pump operating at full prime and flow capacity.

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.