Part # 5074-13A
Manufacturer Code 072927
Dimensions 4.1" X 3.875"
Pentair® WhisperFlo® / IntelliFlo® Pump Diffuser – 072927 (0.75–2.5 HP)
✅ Genuine Pentair® OEM Replacement Part
⚠️ For Use with 0.75 HP to 2.5 HP WhisperFlo® and IntelliFlo® Pumps
➡️ Ensures Proper Water Flow into Impeller for Peak Efficiency
The Pentair® 072927 Diffuser is a factory-original component designed to optimize hydraulic performance in WhisperFlo® and IntelliFlo® pumps ranging from 0.75 HP to 2.5 HP. This OEM diffuser channels incoming water efficiently into the impeller, enhancing overall flow rate, reducing cavitation, and ensuring quiet operation.
Key Features:
• OEM fit for Pentair® WhisperFlo® and IntelliFlo® pumps
• Designed for 0.75–2.5 HP models
• Improves priming, pressure, and water flow consistency
• Molded from durable, corrosion-resistant thermoplastic
• Easy to install during routine maintenance or rebuilds
Pentair OEM Part Number: 072927
• Mounts directly between the volute and impeller
• Compatible with 56Y square flange motor assemblies
• Not for use with 3 HP or higher pump models (use 073129)
Compatible With:
• Pentair® WhisperFlo® Standard and High Performance Pumps
• Pentair® IntelliFlo® VS, VF, and VST Variable Speed Pumps
(Always verify horsepower rating and motor flange before ordering.)
Installation Tip:
Replace the diffuser o-ring (sold separately) and inspect impeller and shaft seal for wear during installation. Proper alignment ensures quiet, leak-free operation.
Hi, I'm looking for a diffuser that would fit into a Whisperflo Model WF-26 with 1.5 hp motor. Would this one fit?
Reply
Hello Rey - Part number 072927 (5074-13A) is the correct diffuser for the WF-26 Whisperflo pump.
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I have low suction pressure and the dischard tank pressure is only 4psi, my impeller check OK, The diffuser looks good , need some advise.
Reply
Hello Eddie - It sounds like you have an air leak. Click here to view our guide about air leaks. Also, check the valves in front of your pump. They are a common spot for air leaks.
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Does this diffuser come with the set screws for attaching to seal plate? or would they need to be ordered separately?
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I'm need to replace the diffuser plate in a whishperflow pump model WFE-28 C can advise me on the part that I need
Reply
The Diffuser Assy., 3/4 - 2 1/2 Hp (072927) item #5074-13A is the correct diffuser plate for the WFE-28 Whisperflo pump.
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Hello we recently purchased a new diffuser from you and we seem to have a problem with the diffuser o ring coming off and going into the basket area can you advise what the problem is
Reply
A few tips that I would advise would be to replace the o-ring if it has not yet been and use lubricant to both help seal and hold it into place.
Reply
The Most Helpful Review
1 0
(5 out of 5 stars) Holds up better than impeller
Reviewed By: Bruce P. from Berkeley, California ()
I replaced this part and the impeller in my pump after years of service, when there seemed to be a reduction in water flow. The sintered brass seal on the underside of this part had eroded under operation, and thus there was no longer a good seal against the stem of the impeller. After the replacement, the pump worked like new.
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The Most Recent Reviews
(5 out of 5 stars)
Reviewed By: Inyo Customer ()
perfect replacement
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(5 out of 5 stars) WhisperFlo Pump parts
Reviewed By: LeeD from Orlando, FL ()
Received the correct parts in a timely fashion.
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