OEM Pentair Impeller 355187 is a precision-engineered replacement part for Pentair Challenger high-pressure pumps. Specifically designed for 3/4 HP full-rated and 1 HP up-rated models, this impeller ensures the pump maintains strong and efficient water flow. Its closed-face construction supports high-pressure operation and extends the performance life of your system. With an outer diameter of approximately 5 inches, this impeller is ideal for demanding residential or light commercial pool systems requiring consistent flow and durability.

• Compatible with Challenger Pumps: Engineered for use in Pentair Challenger models rated at 3/4 HP full-rated and 1 HP up-rated for proper fit and function.

• Supports Strong Water Flow: Helps maintain high-efficiency circulation in pool systems where consistent performance is critical.

• Closed-Face Construction: Features a heavy-duty, enclosed impeller design to enhance hydraulic efficiency and pressure handling.

• 5-Inch Outer Diameter: Sized precisely for high-pressure configurations, supporting performance consistency in challenging environments.

• Built for Longevity: Made from rugged materials to withstand pump wear and ensure continued flow control over time.

• (1)ÊPentair 355187 Impeller

• Pentair Challenger Pumps

Need to restore water flow in your Pentair Challenger pump? This section answers installation, performance, and in-store purchase questions about the 355187 impeller for 3/4 HP and 1 HP models.

Installing the 355187 Impeller on Challenger Pumps

This impeller is precision-built for high-pressure applications, with a closed-face design and 5-inch diameter. It fits 3/4 HP full-rated and 1 HP up-rated Pentair Challenger models.

How do I install the 355187 impeller in a 3/4 HP Challenger pump?

Can I buy this part in person at Discount Pool Mart?

Do I need to use thread sealant during impeller installation?

Is this impeller reverse-threaded or standard?

What tools do I need to safely remove the old impeller?

Troubleshooting Water Flow and Pump Performance

Weak pressure or overheating could mean your impeller is worn or cracked. Learn what symptoms to watch for and how this part restores peak output.

Why is my Pentair Challenger pump losing pressure suddenly?

Could a damaged impeller cause motor overheating?

What are signs the 355187 impeller is clogged or broken?

How do I test pump flow before and after impeller replacement?

Can I bring my old part to Discount Pool Mart to match size?

Buying the Impeller Locally

Discount Pool Mart stocks common high-performance parts like the 355187 impeller. Shopping in store helps confirm fit and get expert assistance on install.

Where can I walk in to buy the 355187 impeller today?

Will store staff help verify fit for my specific Challenger model?

Is this part sold individually or part of an impeller kit?

What other Challenger parts should I inspect while IÕm in store?

Can I see the impellerÕs face and size before purchase?