By Pentair Pool Products



Part # 5074-27C

Manufacturer Code 073129

Dimensions 4.88" X 0.54"

Alternate Part #'s 073129, 25305-129-000, 73129, PUR1019939, S17097, V20-204, 35-110-2114, PEN073129

Product Description

Impeller, 2 THP - 073129

Frequently Bought with this Impeller

Shaft Seal 5250-106

RTV Silicone (For Gluing Seal Into Plate)

Product Specifications

Pump Model:
Whisperflo WF-6, WF-28, WFE-6, WFE-28, WFK-6, WFDS-6, WFDS-28
1.5 Full & 2.0 Uprate HP

?     Asked on 10/8/2014by Guest

How do you separate the diffuser seal plate and impeller from the motor?

A  Answered on 10/8/2014 by InyoPools Product Specialist Patrick P.

You can take a look at our how to guide here: http://www.inyopools.com/HowToPage/how_to_replace_a_pool_pump_impeller.aspx.

?     Asked on 6/10/2019by Inyo Visitor

is this the right impeller for a B2858 motor? What other parts should I replace when replacing an old motor?

A  Answered on 6/10/2019 by InyoPools Product Specialist Patrick P.

Could send a few photos of your pump? If you send photos then take a close up shot of the motor label as well as a wide shot of the complete pump to include the pipes going in and out of the pump. To supply photos simply click the reply link below and upload your photos. Once we get any of this information we can make the proper recommendation.

  • Commented on 6/10/2019 by Product Owner

    I don't have the motor, I am hoping to buy it from you, but I want to know which other parts I should buy to make sure that the installation goes smoothly and the motor lasts as long as possible

    • Commented on 6/11/2019 by InyoPools Product Specialist Patrick P.

      Hi Jeff, The parts needed for installation are tied to the pump housing side, as this motor is used on about 10 different models of pumps and each one of those pumps requires unique parts. Here is a Good Image Showing the Difference between Pump Side and Motor Side can you pull any information or part #'s off of your pump side?

?     Asked on 9/2/2019by gerald graczyk

is this the right part for my pump?


A  Answered on 9/5/2019 by InyoPools Product Specialist Lennox H.

Hi, Gerald. The correct impeller is P/N 073128

?     Asked on 4/1/2020by Charles Pierce

I believe this the right impeller but... just make sure I have measured the impeller at 4.9in and .54in attached is a picture thanks


A  Answered on 4/3/2020 by InyoPools Product Specialist Patrick P.

Hi Charles, Yes we are showing this is the correct impeller for the motor shown in your photo.

?     Asked on 4/30/2020by Mike Fincke

Does this impeller come with the screw to hold it into the motor? And can I buy a screw separately, I believe it is reverse threaded...

A  Answered on 1/8/2021 by InyoPools Product Specialist Hector F.

Hi Mike, this impeller is used in the Pentair Whisperflo series pool pump. Please see this parts diagram where key numbers 14 and 15 show the set screw and washer used with it. 

  • Commented on 1/8/2021 by Product Owner

    Ok- thanks for your response. Is the answer- "No the screw does not come with the impeller and you will have to buy it and a washer separately"?

    • Commented on 2/18/2021 by InyoPools Product Specialist Hector F.

      Hi Mike, yes that is correct. 


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