Product Overview

The Pentair 354821S is a genuine OEM replacement pump motor designed for compatible Pentair WhisperFlo and SuperFlo pool pump systems. This 1 HP single-speed motor features a TEFC enclosure, helping protect internal motor components from dust, debris, and outdoor equipment pad conditions.

This motor is a practical replacement option when the existing pump wet end is still in good condition, but the motor has failed or needs to be replaced.

Ideal For

Pool owners and service professionals replacing a failed 1 HP single-speed motor on compatible Pentair WhisperFlo and SuperFlo pump models.

Key Features

• Genuine Pentair replacement pump motor
• 1 HP single-speed motor
• TEFC motor enclosure
• 56Y square flange frame
• 1-phase operation
• Dual-voltage design
• Compatible with select Pentair WhisperFlo and SuperFlo pumps
• Almond motor finish
• Designed for pool equipment pad environments
• Professional installation recommended

Benefits

The Pentair 354821S motor helps restore pump performance without replacing the entire pump assembly. If the pump housing, wet end, seal plate, and plumbing are still in good condition, replacing only the motor can be a cost-effective repair option.

The TEFC enclosure helps protect the motor from dust and debris, while the 56Y square flange frame is designed for proper fitment on compatible Pentair pump applications.

Specifications

Confirm Before Ordering

Please confirm your pump model, horsepower, voltage, frame type, seal plate, impeller, and shaft seal requirements before ordering. Motor compatibility can vary by pump model and existing pump configuration.

Professional installation is recommended. It is also recommended to inspect and replace the shaft seal when replacing a pool pump motor.

Customer-Facing Q&A

Is this motor for WhisperFlo or SuperFlo pumps?
Yes. This motor is designed for compatible Pentair WhisperFlo and SuperFlo pump applications.

What horsepower is this motor?
This motor is rated at 1 HP.

Is this a single-speed motor?
Yes. Pentair 354821S is a single-speed motor.

What does TEFC mean?
TEFC stands for Totally Enclosed Fan Cooled. This design helps protect the motor from dust and debris in outdoor pool equipment environments.

What voltage does this motor use?
This motor is commonly listed as 115/208-230V.

Does this include the pump wet end?
No. This listing is for the replacement motor only, not the complete pump or wet end.

Should I replace the shaft seal during installation?
Yes. Replacing the shaft seal during motor replacement is strongly recommended to help prevent leaks and premature motor failure.