Wacker Neuson 5000158125 Mechanical Seal Silicon Carbide

The Wacker Neuson is a genuine OEM Mechanical Seal Silicon Carbide designed for the PT2 series self-priming centrifugal trash pumps, including PT2, PT2A, PT2H, and PT2V models. As a direct OEM replacement sourced through Wacker Neuson's authorized parts program, the is manufactured to the same specifications as the original component installed at the factory. This seal is a critical wear item in pump service and is the correct part to restore a leaking or damaged pump shaft seal on 50mm/2-inch Wacker Neuson trash pumps. Verify your model number before ordering to confirm fitment across the PT2 family.

Key Features

• Silicon Carbide Seal Face Material — Hard-wearing silicon carbide faces resist abrasion from the sand, grit, and debris passing through trash pump casings, extending service intervals between seal replacements.
• Genuine OEM Part — Manufactured to Wacker Neuson's original design tolerances, ensuring correct shaft contact pressure and leak-free sealing at the pump impeller shaft.
• Broad PT2 Family Coverage — Fits PT2, PT2A, PT2H, and PT2V 50mm/2-inch centrifugal trash pump configurations across multiple machine numbers in the PT2 series.
• Drop-In Shaft Seal Replacement — Designed to seat directly into the pump volute housing with no machining or modification to the seal bore, making field or shop replacement straightforward.
• Prevents Pump Shaft Leakage — A functioning mechanical seal keeps water and slurry from migrating along the impeller shaft into the engine or bearing housing; a failed seal causes immediate fluid leakage and risks bearing damage if left unaddressed.

A mechanical seal is the rotating seal assembly that prevents pumped fluid from leaking along the impeller drive shaft and out of the pump casing. In a trash pump like the PT2 series, the seal faces are pressed together under spring tension and rotate against each other to form a dynamic, liquid-tight barrier between the wet pump end and the dry engine or drive end. Because these faces are constantly in motion and exposed to abrasive slurry, sand, and debris, the seal is one of the highest-wear components in any centrifugal pump. When the seal faces wear, crack, or lose spring tension, the pump will begin leaking at the shaft — typically visible as water weeping from the pump body near the volute joint. Replacing the mechanical seal with the correct Wacker Neuson 5000158125 restores the pump's ability to maintain prime and deliver full discharge pressure.

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.