Pentair 357239 clamp ram and cam for Optiflo pumpsPentair Clamp Ram and Cam, Optiflo, 357239 In stock$2699
Pentair 357239 clamp ram and cam for Optiflo pumps
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Pentair Clamp Ram and Cam, Optiflo, 357239

Ask a questionMPN 357239
$2699
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Quick overview

  • Genuine Pentair Factory part 357239 for the Optiflo clamping ring.
  • Fits two pump families Listed for Pentair Optiflo pumps and for the Jacuzzi JPA Pro Grade above ground pump.
  • The clamping ring hardware The ram and cam are what draw the clamp closed around the pump housing joint.
  • Sized to the housing Inner diameter 5-1/8", with the source listing an outer diameter of 10-1/8" ear to ear and also quoting 6-1/2".
  • A leak you cannot torque out Once the cam or ram is worn, the clamp will not pull the joint tight no matter how hard it is closed.
  • Cheap next to the alternative Replacing the clamp hardware is a fraction of what a pump housing costs.
Full description and specifications ↓

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Product details

The Pentair 357239 is the clamp ram and cam for Optiflo pumps, also listed for the Jacuzzi JPA Pro Grade above ground pump. The source data also refers to it as the clamping ring.

What it does

The two halves of the pump housing are held together by a clamp band, and the ram and cam are the hardware that closes it. The cam levers over center, the ram carries the load, and the joint pulls up tight against its seal. It is a piece that takes real force every time the pump is opened and closed.

The symptom

A pump that seeps at the housing joint is either a seal problem or a clamp problem. If the seal is in good shape and the clamp still cannot draw the joint closed, the ram and cam have worn and there is nothing to be gained from leaning on the lever harder.

On the dimensions

The inner diameter is given as 5-1/8". The outer diameter is quoted two ways in the source data, once as 10-1/8" ear to ear and once as 6-1/2", so both are listed here rather than guessing at which is meant. If the fit is at all in doubt, measure the clamp you are replacing.

Specifications
Brand Pentair
Manufacturer part number 357239
Alternate part number 622340
UPC 788379720780
Type Clamp ram and cam
Also called Clamping ring
Part type Pool pump part
Inner diameter 5-1/8"
Outer diameter, ear to ear 10-1/8"
Outer diameter 6-1/2"
Fits Optiflo pumps and Jacuzzi JPA Pro Grade above ground pump
Shipping weight 0.45 lb
Ships Parcel

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Questions and answers

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

Which pumps does this fit?
Pentair Optiflo pumps and the Jacuzzi JPA Pro Grade above ground pump.
What are the dimensions?
The inner diameter is 5-1/8". On the outer diameter the source is not consistent: it gives 10-1/8" ear to ear and also quotes 6-1/2". Measure your existing clamp before ordering if the fit is in question.
What is a clamp ram and cam?
It is the hardware on the clamping ring that pulls the band closed. The cam levers over and the ram takes the load, drawing the two halves of the pump housing together against the seal.
Why is my pump leaking at the housing joint?
Either the seal or the clamp. If the seal looks good and the clamp still will not draw the joint tight, the ram and cam are worn and no amount of force on the lever will fix it.
Ask your own question