Pentair WhisperFloXF Pump Motor, Single Speed, 2HP, 208-230-460V, Three Phase | 354809S

Pentair 354809S WhisperFlo / WhisperFloXF Replacement Motor | 2 HP | 3-Phase | TEFC | 208–230/460V | Almond

The Pentair 354809S is an OEM replacement pump motor used on select Pentair WhisperFlo and WhisperFloXF high-flow pump configurations. This is a heavy-duty, totally enclosed fan-cooled (TEFC) motor designed for reliable operation in demanding pool and commercial systems where 3-phase power is available.

Common Applications

• Pentair WhisperFlo pump configurations commonly referenced as WFK-8
• Pentair WhisperFloXF pump configurations commonly referenced as XFK-8
• Other compatible WhisperFlo / WhisperFloXF variants that use a 2 HP, 3-phase, square-flange TEFC motor (model/revision dependent)

Always confirm compatibility using your pump model number and parts diagram, and match the motor’s phase/voltage to your power supply before ordering.

Motor Specifications

• Horsepower: 2.0 HP
• Phase: 3-phase
• Voltage: 208–230V / 460V
• Frequency: 60 Hz
• Enclosure: TEFC (Totally Enclosed Fan Cooled)
• Mount: Square flange (pump-duty)
• Speed: Single speed (typical for this motor configuration)
• Color/Finish: Almond

Common Reasons to Replace the Motor

• Motor will not start, starts intermittently, or trips protection devices
• Overheating, abnormal fan noise, or repeated thermal shutdown
• Grinding/squealing bearing noise or excessive vibration
• Burnt odor, visible corrosion, or evidence of electrical damage
• Reduced performance after confirming the wet end (impeller/diffuser) is in good condition

Installation Notes

• Turn off power at the breaker/disconnect and verify power is off before servicing.
• Confirm your supply is 3-phase and wire the motor for the correct voltage (208–230V vs 460V).
• When swapping motors, it’s strongly recommended to replace the mechanical shaft seal and any disturbed O-rings/gaskets.
• Inspect the seal plate, diffuser, and impeller for heat damage if the pump has run dry.
• After reassembly, prime the pump fully and check for leaks at the seal plate seam and plumbing connections.

Related Products (Aqua Pool Supply)

• WhisperFlo XF Shaft Seals (Search)
• WhisperFlo / WhisperFloXF Gasket & O-Ring Kits (Search)
• WhisperFlo / WhisperFloXF Impellers (Search)
• WhisperFlo / WhisperFloXF Diffusers (Search)
• Pool Equipment Surge Protection (Search)

Maintenance Tips

• Keep the equipment area ventilated and clear of debris so the TEFC motor fan can move air freely.
• Address wet-end leaks immediately—water intrusion and corrosion can shorten motor life.
• Maintain strong flow (clean baskets/strainers and filters) to reduce load, heat, and cavitation.
• Verify proper bonding/grounding and stable supply voltage; electrical issues can damage pump motors.
• If installed in a harsh environment (salt air, chemical storage nearby), reduce chemical splash exposure and rinse exterior surfaces as needed.