Wacker Neuson

Wacker Neuson 5000077804 Ring Seal

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SKU:
5000077804 | 77804 | Wacker Neuson
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The Wacker Neuson Ring Seal is a genuine OEM component designed for the PT3 series 75mm/3in centrifugal trash pumps. Sourced directly from Wacker Neuson, this seal is manufactured to the exact tolerances required for proper pump assembly, ensuring a secure, leak-free fit within the pump housing. Compatible with PT3Y, PT3V, PT3A, PT3B, and PTK3 models, the covers the full range of 3-inch PT series trash pump configurations. Keeping sealing surfaces in top condition is critical to maintaining pump output and preventing fluid bypass.

Key Features

  • Genuine OEM Sealing Integrity — Manufactured to Wacker Neuson's exact compression and material specifications, ensuring the seal conforms correctly to mating pump surfaces and holds under continuous pumping pressure.
  • Drop-In Compatibility — Engineered to seat directly into the original seal groove, aligning with existing pump housing geometry without rework or modification.
  • Broad PT3 Series Fitment — Confirmed fit across PT3Y, PT3V, PT3A, PT3B, and PTK3 75mm/3in centrifugal trash pump models, including the PTK3 pump kit (without engine) variant.
  • Leak Prevention at the Source — A worn or damaged ring seal allows fluid to bypass the sealing interface, causing pressure loss and reduced pump efficiency; replacing it restores full pumping performance.
  • Fluid System Safety — A properly seated ring seal prevents uncontrolled fluid leakage around the pump assembly, protecting the operator and worksite from fluid escape under load.

A ring seal creates a compressed, fluid-tight barrier between mating surfaces inside the pump assembly, preventing water or slurry from escaping the pressurized flow path. In a centrifugal trash pump like the PT3 series, maintaining this seal is essential — if it degrades or fails, the pump loses prime, output pressure drops, and fluid can leak externally at the joint. Replacing a worn ring seal restores the integrity of the pump's internal circuit and brings performance back to spec.

Part Details

Part Number5000077804
Old Part Number0077804
BrandWacker Neuson
Part TypeGenuine OEM
DescriptionRing Seal

Compatibility & Fitment

Name Model Machine Number
75mm/3in Centrifugal Trash Pum p PT3Y 5000007118, 5000007119
75mm/3in Centrifugal Trash Pum p PT3V 5000007171
75mm/3in Centrifugal Trash Pum p PT3A 5000006729, 5000006730
75mm/3in Centrifugal Trash Pum p Kit (without engin PTK3 5000006747
75mm/3in Centrifugal Trash Pum p PT3B 5000006731

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.