Pentair 355604Z Pump Impeller

The Pentair 355604Z is a replacement pump impeller designed for use in compatible Pentair Challenger high-pressure pool pumps. This impeller plays a critical role in moving water through the pump and maintaining proper circulation, pressure, and overall system efficiency.

Key Benefits

• Restores proper water flow and hydraulic performance
• Helps reduce motor strain caused by worn or damaged impeller vanes
• Precision-molded for balanced rotation and smooth operation
• Durable construction for long service life in demanding pool environments

Compatibility

• Designed for Pentair Challenger high-pressure pool pumps
• Commonly used on pumps with 2.0 HP full-rated motors
• Also compatible with select 2.5 HP uprated configurations

Fitment Tip: Always confirm pump model, horsepower rating, and impeller specifications before ordering. Using the correct impeller is essential for proper performance and motor longevity.

What’s Included

• 1 × Pump impeller (Pentair 355604Z)

Installation Notes

1. Turn off power to the pump at the breaker.
2. Relieve system pressure and drain the pump housing.
3. Remove the diffuser and unthread the existing impeller from the motor shaft.
4. Inspect the shaft seal and diffuser and replace if worn.
5. Thread the new impeller onto the shaft and reassemble the pump.
6. Prime the pump and restore power, then verify proper operation.

When to Replace

• Reduced water flow or pressure
• Visible wear, cracking, or erosion on the impeller blades
• Unusual noise, vibration, or overheating during pump operation

Maintenance Tips

• Clean pump and skimmer baskets regularly to prevent debris from reaching the impeller.
• Inspect the impeller whenever the pump is opened for seal or gasket service.
• Replacing the shaft seal at the same time helps prevent leaks and extend motor life.