Pentair WhisperFlo® Impeller 1.5HP | WhisperFlo Pump | 073129Z

The Pentair WhisperFlo Impeller (073129Z) is the OEM replacement 1.5HP impeller for the WhisperFlo series inground pump — covering models WF-6, WF-28, WFE-6, WFE-28, WFK-6, WFDS-6, and WFDS-28.

The impeller is the rotating component at the heart of your pump's hydraulic assembly. It draws water through the strainer housing and drives it toward the filter and return lines. A cracked, worn, or clogged impeller reduces flow rate and puts unnecessary load on the motor — replacing it with the correct OEM part restores designed pump output and protects the motor from running under strain.

Specifications

Fits Into

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.

Pro Tip

WhisperFlo impellers are horsepower-specific — installing the wrong HP impeller will restrict flow or overload the motor. Before ordering, confirm the horsepower rating on your pump's nameplate matches the 1.5HP designation of this part. While the pump is open for impeller replacement, inspect the shaft seal and diffuser for wear and replace them at the same time to avoid reassembling the pump only to reopen it shortly after.