almond colored single speed pump motor with visible shaft and cooling fins showing a robust industrial design
almond colored pump motor with wire connections and ventilation grill on one side showing barcode and model labels
almond colored rectangular pump motor component with wiring and detailed specification label attached on top surface

Pentair WhisperFlo Replacement Motor 1 HP Single Speed Three Phase | WFK-4 Super-Duty Almond | 354805S

Regular price$427.99
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SKU:
354805S
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About This Item

The Pentair 354805S is a replacement motor for WhisperFlo pool pumps — specifically the WFK-4 Super-Duty frame configuration in almond finish. This single-speed, three-phase motor restores full pump performance when the original motor has reached end of life.

Engineered to the original square-flange mounting specification, this motor drops into the WhisperFlo pump housing without modification. The threaded shaft and 4-bolt square-flange design ensure correct alignment with the existing pump seal plate and impeller assembly.

Specifications

Pentair Part Number 354805S
Horsepower 1 HP
Speed Single Speed
Phase Three Phase
Frame / Configuration WFK-4 Super-Duty, Square Flange, 4-Bolt
Shaft Type Threaded
Color Almond
Compatible Pump Pentair WhisperFlo

Poolaroo Pro Tip

Three-phase motors require a correctly configured three-phase power supply — confirm your electrical service and existing wiring before ordering. When replacing a WhisperFlo motor, also inspect the shaft seal and O-rings on the seal plate; these wear items are typically replaced at the same service interval to avoid a repeat labour call.

CALIFORNIA PROPOSITION 65 WARNING: This product can expose you to chemicals which are known to the State of California to cause cancer and birth defects or other reproductive harm. For more information, go to www.P65Warnings.ca.gov.
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Pentair Pool Products and Parts

About Pentair Pool Products and Parts

Pentair is often considered the "gold standard" for pool professionals, and for good reason. Founded in 1966 (originally by five inventors making high-altitude balloons!), the company has evolved into the global leader in smart, sustainable water solutions. For the DIY homeowner, Pentair represents the intersection of rugged durability and silicon valley-tier technology. They pioneered the Variable Speed Pump revolution with the IntelliFlo®, saving American pool owners millions in energy costs. Today, their ecosystem focuses heavily on automation, allowing you to control your pump, heater, lights, and chemistry from a single app. While they are a favorite among professional builders, their "EC" (E-Commerce) line of equipment allows homeowners to access pro-grade technology with valid warranties for DIY installation.

Why We Trust Pentair Pool Products and Parts
Energy Efficiency Leaders: Recipient of the ENERGY STAR® Partner of the Year award for over a decade; their pumps are designed to pay for themselves in energy savings.

Smart Automation: The Pentair Home App and IntelliCenter systems offer best-in-class control over your pool ecosystem from anywhere in the world.

Professional Pedigree: The brand most often recommended and installed by pool builders for high-end residential pools.

Eco-Conscious: Dedicated to reducing water waste and energy consumption through "Green" technology innovations.

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