Swimables 1.5HP Impeller for Pentair WhisperFlo Pumps | 073129 SW-21-004
Bring Your Pump Back to Life
If your Pentair WhisperFlo pump isn’t moving water like it used to, the impeller could be the problem. The Swimables 1.5HP Impeller Replacement (073129 SW-21-004) is designed to restore lost performance, improve circulation, and protect your pool system from unnecessary strain. This high-quality replacement is engineered to meet OEM standards, ensuring your pump delivers the consistent horsepower and water flow your pool needs.
The impeller is the driving force of your pump, pulling water in and pushing it through the filter, heater, and returns. Over time, impellers can wear down, crack, or become clogged with debris, causing weak flow and stress on the motor. Replacing it with a Swimables OEM-style impeller is a simple, affordable way to revive your pump and extend its lifespan.
Engineered for Perfect Compatibility
The Swimables 1.5HP Impeller is manufactured to match Pentair’s OEM part number 073129. Its precision molding ensures compatibility with:
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Pentair WhisperFlo 1.5HP pumps
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Any system requiring OEM impeller 073129
By replicating the exact hydraulic design of the original part, this replacement provides reliable performance that matches your pump’s horsepower rating. That means strong, steady water flow for daily filtration, heating, or water features—without putting extra strain on the motor.
Key Benefits of Choosing Swimables
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Direct OEM Match: Specifically replaces Pentair 073129 for 1.5HP WhisperFlo models.
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Durable Construction: Built from tough, chemical-resistant materials that hold up in harsh pool environments.
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Affordable Solution: Extends the life of your pump without the cost of a complete replacement.
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Restored Performance: Returns your system to the correct flow rate, keeping water clean and equipment efficient.
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Motor Protection: Prevents overheating and premature failure caused by weak or damaged impellers.
Is It Time to Replace Your Impeller?
Not sure if your pump impeller needs replacement? Look out for these common signs:
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Reduced water flow through pool returns
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Lower than normal filter pressure
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Motor overheating or running louder than usual
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Air bubbles appearing in the pump strainer basket
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Difficulty priming the pump
If you’re experiencing any of these issues, a worn impeller is often the culprit. Installing the Swimables 1.5HP Impeller Replacement can restore full performance quickly and prevent further damage.
Technical Specifications
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Part Number: 073129 SW-21-004
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Horsepower Rating: 1.5HP
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Compatible Models: Pentair WhisperFlo 1.5HP pumps
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Material: High-strength, chemical-resistant plastic
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Function: Replaces worn impeller to restore water flow and pump efficiency
Extend the Life of Your Pump System
Replacing a worn impeller isn’t just about restoring flow—it’s also about protecting your investment. A failing impeller forces the motor to work harder, which can shorten its life and cause costly breakdowns. By installing a fresh impeller, you relieve stress on the motor, seals, and bearings, helping your pump operate smoothly for years to come.
The restored circulation also benefits your entire pool system. Your filter captures more debris, your heater works more effectively, and your sanitizing system functions properly—all because your pump is moving water at the correct rate.
Straightforward Installation
The Swimables 1.5HP Impeller Replacement is designed for easy installation, whether you’re a DIY pool owner or a professional technician. The basic steps include:
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Shut off and disconnect the power to the pump.
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Open the pump housing to access the motor assembly.
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Remove the old impeller from the motor shaft.
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Install the new Swimables impeller in its place.
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Reassemble the pump housing and restore power.
With just a few tools, most pool owners can replace the impeller themselves. However, professional installation is always an option if you prefer expert setup and inspection.
The Swimables Advantage
Swimables has built its reputation by providing high-quality, affordable replacement parts that match or exceed OEM standards. The 073129 SW-21-004 impeller is no exception—offering durability, reliability, and performance designed for long-lasting operation. By choosing Swimables, you’re getting a trusted replacement part that helps keep your pool running smoothly without breaking the bank.
Frequently Asked Questions (FAQ)
Q: Is this an exact replacement for Pentair part number 073129?
A: Yes, this impeller is specifically designed to replace OEM 073129 used in 1.5HP WhisperFlo pumps.
Q: Can I use this impeller in other horsepower pumps?
A: No, it is designed only for 1.5HP models. Using it in the wrong pump size can cause inefficiency or motor damage.
Q: What symptoms suggest my impeller needs replacement?
A: Common signs include weak water flow, overheating motors, priming issues, and unusual noises from the pump.
Q: Do I need a professional to install this impeller?
A: Many pool owners can install it with basic tools, but a professional can ensure proper alignment and system checks.
Q: How long will a new impeller last?
A: With balanced water chemistry and proper maintenance, impellers often last several years before needing replacement.
Q: Will replacing my impeller improve water clarity?
A: Yes. Stronger, consistent water flow improves filtration, which directly enhances water clarity and cleanliness.
