Polaris | R0747800 | Shaft Seal | Replacement for PB4SQ Booster Pump

This shaft seal is a replacement sealing component designed for compatible Polaris PB4SQ booster pumps. It helps seal around the motor shaft to reduce water leakage from the pump wet end.

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Key Features

• Replacement shaft seal for compatible PB4SQ booster pumps

• Helps seal the motor shaft area during pump operation

• Replaces worn, leaking, damaged, or failed shaft seals

• Used during booster pump repair and wet-end service

• Supports proper pump sealing and reliable operation

• Professional installation is recommended for pump seal replacement

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Product Overview

This shaft seal is used inside compatible PB4SQ booster pumps to help prevent water from leaking along the motor shaft. A properly installed seal is important for protecting the motor and maintaining pump performance.

The seal is commonly replaced when water leaks are found near the motor or backplate area. Correct installation helps restore proper sealing and dependable booster pump operation.