Pentair Imp Asy 5Hp Wf Xf Repl | 400023Z

Pentair Impeller Assembly | Max-E-ProXF & WhisperFlo XF | 400023Z

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SKU:
400023Z
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About This Item

The Pentair Impeller Assembly (400023Z) is the OEM replacement impeller for the Max-E-ProXF and WhisperFlo XF series inground pumps, including fixed-speed 20 HP configurations and variable speed models.

What It Does

The impeller is the rotating component inside the pump wet end responsible for moving water through the circulation system. A worn, cracked, or clogged impeller reduces flow rate and puts strain on the pump motor. Replacing it with the correct OEM assembly restores designed hydraulic performance to your Max-E-ProXF or WhisperFlo XF pump.

Specifications

Pentair Part Number 400023Z
Part Name Impeller Assembly
Part Type Impeller
Quantity Included Each (1)

Fits Into

Brand Equipment Line Model / Part Number Notes
Pentair MAX-E-PROXF XFET-20 Impeller for 20 HP variants
Pentair MAX-E-PROXF XFE-20 Impeller for 20 HP variants
Pentair MAX-E-PROXF XFJ-20 Impeller for 20 HP variants
Pentair MAX-E-PROXF XFK-20 Impeller for 20 HP variants
Pentair Max-E-ProXF Max-E-ProXF VS
Pentair WhisperFloXF WhisperFloXF VS

Compatibility is based on Pentair parts documentation and available OEM records. This is not an exhaustive list. For certainty, verify the part number in your equipment's manual or on the original part itself before ordering.

Poolaroo Pro Tip

Before installing the replacement impeller, inspect the pump diffuser and wear ring for scoring or damage — these components work directly against the impeller face and a worn diffuser will reduce performance even with a new impeller in place. Consult your WhisperFlo XF or Max-E-ProXF service manual to confirm the correct torque spec when reassembling the wet end. If your pump model number is not listed above, verify part 400023Z against the exploded diagram in your equipment manual before ordering.

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.

More about Genuine Pentair Pool Parts

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