Seal Plate (ONLY) - WF Series - 074564



Part # 5074-18A

  4.55 Average  



Part # 5074-18A

Manufacturer Code 074564

Dimensions 10" L x 10" W x 2" D

Alternate Part #'s 074564, 25357-300-000, 311 PEN (mold#), 74564, PUR1013477, V20-208

Product Description

Seal Plate (ONLY) - REPLACES PENTAIR WF Series - 074564

**NOTE: PART # 350202 includes the pump Mechanical Seal and Seal Plate Gasket.**

REPLACES Whisper-Flo Pump Seal Plate


?     Asked on 1/18/2020 by Jim shaver

Is this seal plate also for a model WFE-12, 3 HP. Thanks

A  Answered on 1/21/2020 by InyoPools Product Specialist Lennox H.

Hi, Jim. Yes, this Seal Plate will also work for the WFE-12  model.

?     Asked on 9/28/2019 by Justin Burns

will this fit a WFE-8 pump?

A  Answered on 9/30/2019 by InyoPools Product Specialist Michelle B.

Hello, Yes, that would fit your WFE-8 pump.

?     Asked on 8/27/2019 by Scott

if i change seal plate 5074-18a from my 56y frame motor , with seal plate 5074-38 of a 48y frame, on my existing WF-12 pump housing, can I then add variable speed motor ECM27SQU and have everything else line up?

A  Answered on 9/13/2019 by InyoPools Product Specialist Hector F.

You actually would not need to change the seal plate, however, you may want to change the impeller to part number 5074-27D

?     Asked on 5/25/2019 by bob

max e glass3/4 hp need inside picture of motor

A  Answered on 5/29/2019 by InyoPools Product Specialist Michelle B.

Can you please take a picture of the part you are trying to replace?

?     Asked on 4/9/2018 by Greg

Will this seal plate fit a wf-24?

A  Answered on 4/9/2018 by InyoPools Product Specialist Hector F.

Yes, this seal plate will work for the Whisperflo pump. 

?     Asked on 10/16/2017 by Bob

What is the required seal plate for a Pentair WhisperFlow WF-28 pump.

A  Answered on 10/16/2017 by InyoPools Product Specialist Lennox H.

Hi, Bob. This Seal Plate - 074564 will fit the WF-26 Pump. 

?     Asked on 9/2/2016 by richard watters

how does the seal plate come off after you have disconeted the pump

A  Answered on 9/2/2016 by InyoPools Product Specialist Megan C.

Hello, Richard. You will need to remove the diffuser cover and impeller first. I have included a link on How To Replace the Motor on Your Pool Pump The link is not specific to the Whisperflo, though, it will provide a general overview on how remove the parts.

?     Asked on 8/1/2016 by

Do you know what the torque specs are for the bolts? The previous one was had broken around the nut well do to overtightening. Thanks

A  Answered on 8/3/2016 by InyoPools Product Specialist Alan M.

I would recommend contacting Pentair at 1-800-831-7133. Unfortunately we do not have the information to properly answer your question.

?     Asked on 12/13/2015 by mirian

I have a whisperflo model wf-26 will this seal plate work with this model?

A  Answered on 12/14/2015 by InyoPools Product Specialist Robert M.

Hello Mirian - Yes, part number 5074-18A (074564) is the correct seal plate for the WF-26.

?     Asked on 9/29/2015 by ron

I have an older model whisper flo wf 4,,,and it runs my pop ups,,not my filter,,and it is leaking water at the bottom of the seal plate,,new gaskets did not help ,,maybe my seal plate flange is warped from overtightening,,I doubt if the housing is warped will this item fit my pump??

A  Answered on 10/5/2015 by InyoPools Product Specialist Lennox H.

Hi Ron, The WFE Seal Plate (074564) will work with your older model WF-4 Pump.


Est. Repair Time

1 to 2 hrs

Tools Needed

Screwdriver, Socket Set, Wrench Set

Old Seal Plate Corroded

Written on 4/15/2019 by Guest

First the new ceramic seal is pressed into the pump impeller. Then the matching seal is pressed into the seal plate. New seal plate attaches to motor with four bolts that engage metal threaded inserts (these were corroded and wobbly in the old replaced seal plate).

Impeller is screwed into the motor shaft (holding shaft steady with small wrench). Then reverse threaded bolt is screwed onto tip of motor shaft (don't forget O-ring). Finally, use hex tool to attach water distributor to motor seal plate.

Were these instructions helpful? 


Review Summary

 (Average 4.55  out of 5 stars)
11 Rating
5 star:
4 star:
3 star:
2 star:
1 star:

The Most Helpful Review

The Most Recent Reviews