355004 | Pentair Challenger & Waterfall Pumps Seal Plate

OEM Pentair Seal Plate 355004 is a factory replacement part designed for Challenger and Waterfall series pumps. This component plays a vital role in maintaining a secure seal between the pump motor and housing, ensuring leak-free operation and reliable pressure integrity. Built from high-strength thermoplastic, the seal plate resists corrosion, chemical exposure, and mechanical stress over time. Its precise construction helps restore proper alignment for the mechanical seal and contributes to consistent water circulation in both residential and commercial systems.

Highlights

• Designed for Challenger & Waterfall Pumps: Built for direct compatibility with Pentair Challenger and Waterfall series pump models, ensuring proper mechanical seal alignment and function.

• Maintains Internal Pressure Seal: Helps prevent leaks between the motor and pump housing by maintaining a tight mechanical seal during operation.

• Reinforced Thermoplastic Build: Manufactured from durable, chemical-resistant thermoplastic material that resists wear and extends service life.

• Supports Circulation Efficiency: By preserving pressure and alignment, this part helps maintain smooth and efficient water movement through the filtration system.

• Ideal for Pool and Spa Systems: Suitable for high-demand use in both residential and commercial installations where consistent performance is required.

Additional Info

Replacing your Pentair pump’s seal plate? This section covers installation help, leak symptoms, and how to get the 355004 seal plate quickly from your local pool store.

Installing the Pentair 355004 Seal Plate

This OEM seal plate is engineered for Challenger and Waterfall pumps. It helps align the mechanical seal, ensuring a tight connection between the motor and housing.

How do I install the Pentair 355004 seal plate in a Challenger pump?

Can I buy the 355004 seal plate in store today?

Does this part require sealant or just bolts to install?

What size motor works with this seal plate?

Can Discount Pool Mart confirm this fits my exact pump model?

Spotting Seal Plate Damage and Leaks

A damaged or warped seal plate can lead to motor leaks or pressure loss. Here’s what to look for and when to replace it.

Why is water dripping between the pump and motor?

What causes cracks in Challenger pump seal plates?

Will a worn seal plate affect prime or suction pressure?

Can I replace just the plate or do I need a whole kit?

Does Discount Pool Mart help identify leaking pump parts?

Buying the Part Locally

Don’t wait for shipping—walk into Discount Pool Mart and grab a replacement today. Ask staff for install tips or help confirming the right part.

Where can I find the Pentair 355004 seal plate in stock?

Can I bring in my pump housing to match this part?

Does the store sell compatible shaft seals too?

Can I buy Challenger pump parts over the counter?

Is this part typically stocked or special order?

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