Wacker Neuson 1000293747 Set of Backup Rings

The Wacker Neuson is a genuine OEM Set of Backup Rings designed for PT6Y and PT6YT series self-priming centrifugal trash pumps. As a factory-sourced component, this set delivers the correct material grade and dimensional tolerances required to maintain a proper seal within the pump assembly. Verified fitment spans multiple PT6Y and PT6YT configurations, including EPA Tier 4 variants, making this the right choice whether you are servicing a standard unit or a compliant-spec model. Keep a set on hand to support scheduled maintenance and avoid unplanned pump downtime on the jobsite.

Key Features

• OEM-Grade Seal Material — Manufactured to Wacker Neuson's original material specification, ensuring correct compression characteristics and chemical resistance for pump fluid contact.
• Direct Drop-In Replacement — Engineered to seat correctly in the existing ring grooves of PT6Y and PT6YT pump assemblies without modification to the housing or shaft components.
• Broad PT6 Series Coverage — Confirmed fitment across PT6Y and PT6YT variants, including EPA Tier 4 models, AU-spec, SA-spec, and IN-spec configurations.
• Leak Prevention at the Source — Backup rings support primary seals by preventing extrusion under pressure; worn or missing rings lead to seal failure, fluid bypass, and loss of pump prime.
• Fluid System Integrity — Correct backup ring fit is critical in high-flow trash pump applications where pressure cycling is constant — using an undersized or incorrect ring accelerates primary seal wear.

Backup rings work in tandem with primary O-rings and seals inside the pump to prevent seal extrusion under operating pressure. In a high-volume trash pump like the PT6Y series, fluid is moved at significant pressure and flow rates, and any gap in the sealing stack allows the primary seal to deform and bypass fluid — leading to loss of prime, reduced output, and eventually seal failure. Replacing backup rings as part of a routine seal service restores the integrity of the sealing system and extends the service life of the surrounding components.

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.