Swimables

Swimables 3/4HP Impeller for WhisperFlo Pumps

SKU: SW-21-002 UPC: 810108821281
Regular price $48.95
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Quick Facts
3/4 HP manufacturer designation
Replacement reference 073127
For matched WhisperFlo pumps
Aftermarket part by Swimables
Confirm exact impeller number
Key Benefits +
  • Replaces a damaged 073127 impeller in correctly matched pumps.
  • Provides the rotating component that moves water through the pump.
  • The exact replacement reference helps prevent ordering by horsepower alone.
  • Supports repair of the pump's internal hydraulic assembly without purchasing a complete pump when the other components are serviceable.
How to Use +
1 Have a qualified pool technician confirm the existing impeller reference and pump configuration. The technician should isolate power and follow the pump manufacturer's service instructions before opening the pump. Inspect the shaft seal, diffuser and gaskets during service and replace worn components with the correct parts. After reassembly, follow the manufacturer's priming and startup procedure and check for leaks and normal circulation.
Specifications +

Manufacturer: Swimables

Manufacturer part number: SW-21-002

Industry replacement reference: Pentair 073127

Manufacturer horsepower designation: 3/4 HP

Product type: Internal pool pump impeller

Pump family: Pentair WhisperFlo

WhisperFlo model references for 073127: WFE-3, WFE-24, WF-3, WF-24, WFK-3, WFDS-3 and WFDS-24

Fit requirement: Match the original impeller number, pump model and motor configuration

UPC: 810108821281

Buy with Confidence from Benchmark Pool Supply +

Order the Swimables SW-21-002 from Benchmark Pool Supply with its 073127 replacement reference clearly identified. Confirm your existing impeller number and pump configuration before purchase so the replacement matches your equipment.

Buy with Confidence from Benchmark Pool Supply

  • Trusted pool professionals
  • 100% Genuine Manufacturer Parts Guaranteed
  • Shipping options for eligible products
Returns subject to product eligibility
Expert Product Support
Full Product Description +

Proper water circulation depends on a correctly sized impeller. The Swimables 3/4HP Impeller Replacement (073127 / SW-21-002) is designed specifically for Pentair WhisperFlo® pool pumps operating at 3/4 horsepower. When an impeller becomes worn, damaged, or partially clogged, pump efficiency drops—leading to poor circulation, reduced filtration, and increased strain on the motor.

This impeller restores the pump’s ability to move water efficiently through the system, helping maintain balanced flow, consistent pressure, and dependable performance. Manufactured to OEM-equivalent specifications, it delivers proper fit and performance without the higher cost of factory-branded components.

The Swimables 3/4HP impeller is commonly replaced during pump rebuilds, seal replacements, or when diagnosing low flow or pressure issues.


Restores Proper Flow and Hydraulic Performance

The impeller is the core component responsible for converting motor power into water movement. Even slight wear can reduce circulation efficiency and compromise overall pool performance.

Replacing the impeller helps restore proper flow rates, ensuring filtration systems, heaters, and cleaners operate as designed.


Designed for Pentair WhisperFlo® Pumps

This impeller is engineered specifically for Pentair WhisperFlo® pumps configured with a 3/4HP motor. Accurate threading and balanced construction allow for smooth installation and stable operation.

Using the correct horsepower-rated impeller helps prevent cavitation, vibration, and unnecessary wear on pump components.


Durable Construction for Long-Term Reliability

Pump impellers operate continuously under pressure in chemically treated water. The Swimables impeller is constructed from durable materials designed to resist erosion, cracking, and deformation.

Its balanced design supports smooth rotation, reducing stress on the motor shaft and mechanical seal while promoting long-term reliability.


Why Replacing a Worn Impeller Matters

A worn or damaged impeller can affect the entire circulation system.

Replacing the impeller helps:

  • Restore proper water flow and pressure

  • Reduce strain on the pump motor

  • Improve filtration, heating, and cleaner performance

  • Extend the service life of the pump

Routine impeller replacement is a key part of proper pump maintenance.


Product Specifications

Specification Details
Product Name Swimables 3/4HP Impeller
Part Number 073127
Manufacturer Part SW-21-002
SKU SW-21-002
Manufacturer Swimables
Horsepower Rating 3/4 HP
Compatible Pumps Pentair WhisperFlo®
Pump Type Pool circulation pump
Function Generates water flow and pressure
Installation Internal pump impeller replacement

Buy with Confidence from Benchmark Pool Supply

When you purchase the Swimables 3/4HP Impeller Replacement from Benchmark Pool Supply, you’re buying from a locally owned pool supply retailer with hands-on experience in pump repair and compatibility.

Benchmark Pool Supply supports homeowners and pool professionals with dependable replacement parts, expert product knowledge, and convenient online ordering with in-store pickup. We stock the components that keep pool circulation systems running efficiently and reliably.

Swimables 3/4HP Impeller for WhisperFlo Pumps
Regular price $48.95

Frequently Asked Questions

What does the Swimables 3/4HP impeller do?

What does the Swimables 3/4HP impeller do?

The Swimables 3/4HP impeller generates water flow and pressure inside Pentair WhisperFlo pool pumps.
Which pumps is this impeller compatible with?

Which pumps is this impeller compatible with?

Swimables cross-references SW-21-002 to Pentair impeller 073127. Use it only in WhisperFlo pumps whose parts list specifies that impeller. Confirm the complete pump model and motor configuration; horsepower alone does not establish fit.
What are signs an impeller needs replacement?

What are signs an impeller needs replacement?

Reduced flow can have several causes, including blocked plumbing, a dirty filter or an obstructed or damaged impeller. Have the pump diagnosed and the impeller inspected before ordering a replacement; symptoms alone do not confirm an impeller fault.
Is this an OEM part?

Is this an OEM part?

No. This is a Swimables aftermarket replacement cross-referenced to Pentair 073127, not a Pentair-branded OEM part.
Should other parts be replaced during impeller installation?

Should other parts be replaced during impeller installation?

It’s recommended to inspect or replace the pump seal and gaskets when servicing the impeller.