Pentair Shaft Seal 5/8" Buna-N Type 6W | U109-6B

Pentair Shaft Seal 5/8" Buna-N Type 6W | U109-6B

Pentair U109-6B 5/8" shaft seal with Buna-N elastomer. OEM seal for J Series and compatible pumps. Prevents leaks and protects motor.

Features

• Fits 5/8" shaft pool pump motors.
• Buna-N elastomer for chemical resistance.
• Prevents water leakage into motor assembly.
• Designed for Pentair Sta-Rite J Series pumps.
• OEM replacement for exact compatibility.

Description

The Pentair U109-6B shaft seal is designed to prevent water from leaking along the motor shaft in compatible pool pumps. It protects the motor from water intrusion and damage.

This seal features a Buna-N elastomer construction and is sized for 5/8" shaft applications. It is commonly used in Sta-Rite J Series and similar Pentair pump systems.

Replacing a worn shaft seal restores proper sealing performance and helps extend the life of your pump.

Pro Tip

Always install a new shaft seal when replacing an impeller or motor to prevent leaks and ensure proper operation.

Installation Tips

Disconnect power before servicing. Avoid touching seal faces with bare hands. Ensure clean surfaces and proper alignment during installation.

We want you to have quick and easy access to warranty information for all the brands we carry. Please click on the links below to view each manufacturer’s warranty page:

• Pentair Warranty
  
• A&A (Pentair In-Floor) Warranty
  
• Fluidra Warranty (Zodiac / Jandy / Polaris / Caretaker)
  
• Paramount Warranty
  
• BlueSquare Warranty
  
• Hayward Warranty
  
• All Other Manufacturer Warranties
  

Note: Warranty coverage, registration, and service terms are provided directly by the manufacturer. Please review the details carefully to ensure proper understanding of coverage and claim procedures.