Pentair IntelliFlo3 Pump Seal Kit | 357872

The Pentair 357872 IntelliFlo3 Pump Seal Kit provides a factory-spec solution for maintaining proper sealing between the wet end and motor on IntelliFlo3 variable speed pool pumps. Manufactured to Pentair OEM performance standards, this kit replaces worn shaft sealing components that can allow water intrusion and compromise motor reliability. Designed to handle high rotational speeds, pressure variation, and continuous exposure to treated pool water, the seals help preserve efficient pump operation. When leakage or seal wear is present, installing the 357872 restores dependable protection and supports long-term pump performance.

Highlights

• IntelliFlo3-Specific Design: Matches the sealing requirements of Pentair IntelliFlo3 variable speed pumps for accurate fit and performance.

• Protects Motor Assembly: Prevents water intrusion at the shaft interface, reducing the risk of corrosion and electrical damage.

• OEM-Standard Seal Components: Built to original Pentair dimensions and materials for reliable compression and longevity.

• Handles Demanding Conditions: Engineered for high-speed operation, pressure changes, and chemical exposure in modern pool systems.

• Practical Maintenance Replacement: Recommended when seals show wear or leaks appear, helping avoid more extensive pump repairs.

Includes

• (1) seal plate o-ring 356173Z
• (1) Shaft Seal Assembly 356210S
• (1) Diffuser O-Ring 356190Z
• (1) strainer pot lid o-ring 356189Z
• (2) Drain Plug O-Rings 192115Z

Compatibility

• Pentair Intelliflo3 VSF Variable Speed and Flow Pumps
• Pentair IntelliPro3 VSF Variable Speed and Flow Pumps

Additional Info

The Pentair 357872 IntelliFlo3 Pump Seal Kit is designed to restore leak protection between the wet end and motor on Pentair IntelliFlo3 variable speed pumps. This section helps SOSPool.com customers confirm compatibility before ordering, understand how seal failure affects pump operation, and prepare for installation after delivery. These FAQs support online buyers through fitment and maintenance planning.

Compatibility Confirmation Before Ordering

Online customers often verify pump generation and model.

How do I confirm the 357872 seal kit fits my pump?

If your pump is labeled IntelliFlo3 and you are servicing the motor-to-wet-end seal, this is the correct kit.

Will this seal kit fit earlier IntelliFlo VS pumps?

No, earlier IntelliFlo models use different seal designs and require different kits.

Can this kit fix water dripping under the motor?

Yes, replacing the shaft seal usually resolves leaks coming from the motor interface.

Installation and Setup After Delivery

These FAQs help customers once the kit arrives.

Is replacing the pump seal difficult?

Seal replacement requires careful disassembly and clean installation, but many experienced DIY users complete it successfully.

Why is cleanliness important when installing a new seal?

Dirt or oils on the seal faces can cause premature failure and continued leakage.

What should I check after reinstalling the pump?

Run the pump at multiple speeds and confirm the seal area remains completely dry.

Shipping, Delivery, and Online Support

These questions help customers understand the ordering experience.

How quickly does the 357872 seal kit ship?

Most orders ship promptly, with delivery estimates shown at checkout and tracking provided.

What should I inspect when the kit arrives?

Check that the seal components are intact, clean, and free of damage.

Do customers often order other pump parts together?

Yes, O-rings, gaskets, and diffuser seals are commonly ordered at the same time.