Pentair 074629 flat washer gasket for a pool pump drain plugPentair Flat Washer Gasket WSHR/WFE/DRN, 074629 In stock$499
Pentair 074629 flat washer gasket for a pool pump drain plug
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Pentair Flat Washer Gasket WSHR/WFE/DRN, 074629

Ask a questionMPN 074629
$499
In stock
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Quick overview

  • Genuine Pentair The factory part, number 074629.
  • Drain plug gasket The flat washer that seals the drain plug into the pump volute.
  • Listed across the Pentair pump range Shown with WhisperFlo WF and WFE, SuperFlo, IntelliFlo VS3050 and VF, and R Series commercial pumps from 5 to 15 hp.
  • Change it at every winterization The gasket is crushed each time the plug goes back in, and a tired one weeps at start up.
  • Cheap part, expensive symptom A drain plug that draws air can stop the pump priming at all.
  • Keep spares Drain plug gaskets are small and easy to lose during a service, so a couple on the shelf is worth having.
Full description and specifications ↓

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Product details

The Pentair 074629 is the flat washer gasket for a pump drain plug. It is the small flat seal that sits under the head of the plug where it threads into the volute, and Pentair lists it across a wide part of the pump range, including the WhisperFlo WF and WFE, the SuperFlo, the IntelliFlo VS3050 and VF, and the R Series commercial pumps from 5 to 15 hp.

The part everyone reuses once too often

Drain plugs come out at every winterization and go back in every spring, and the gasket is crushed a little further each time. Eventually it stops sealing. On the pressure side that shows up as a drip. On the suction side it shows up as a pump that will not prime, or one that primes and then loses it, because the plug is drawing air rather than leaking water.

Worth having spares

The gasket is small enough to disappear into the gravel at the equipment pad, and a pump with two drain plugs needs two. Buying a couple more than the job calls for costs very little and saves a second trip.

Specifications
Brand Pentair
Manufacturer part number 074629
UPC 788379699482
Type Flat washer gasket
Application Pump drain plug
Part type Pool pump part
Listed for Pentair WhisperFlo WF and WFE, SuperFlo, IntelliFlo VS3050 and VF, R Series commercial 5 to 15 hp pumps
Shipping weight 0.01 lb
Ships Parcel

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Questions and answers

What people ask about this product, answered by our pool techs.

What does this gasket seal?
The pump drain plug. It is the flat washer that sits under the plug head where it threads into the volute.
Which pumps use it?
Pentair lists it with the WhisperFlo WF and WFE, the SuperFlo, the IntelliFlo VS3050 and VF, and the R Series commercial pumps from 5 to 15 hp.
Is one enough?
One gasket serves one drain plug, and plenty of pumps carry two plugs. Count the plugs on your volute before ordering.
My pump will not hold prime, could this be it?
It can be. A drain plug that no longer seals lets air into the suction side, and the pump either loses prime or sits with a pocket of air in the basket. A fresh gasket is the cheapest thing to rule out before you start chasing the suction line.
Ask your own question