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Oil Filter Separator Box Diaphragm - P1 & P3 5-cylinder

Aftermarket - 22438685 - 31338685 - 140065

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Sale Price:$17.96
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Typically ships within two weeks
Our Item Number
OEM Reference
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Units Per Car
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Cross Reference
09153021001, 30684381, 30788494, 31338684, 31338685

Product Description


This is the cute little diaphragm that goes inside the oil seperator/breather box assembly on most of the 5 cylinder P1 and P3 cars. When this diaphragm is compromised or torn it results in the famous "idle squeal of death" while stuck in daily traffic.

There was a chassis break early in the P1 cars but any cars that have had PCV dealer service are likely updated to the later style. If your early car has been updated to the later style box (indicated by part number 31338685 on the top cover) and the diaphragm has failed again, this is the diaphragm that fits 31338685.

For all P3 five cylinder Turbo (S60/V60/XC60/V70) and P1 five cylinder (C30/C70/S40/V50) from engine 3285662- onward.

Additional Keywords: FLAME TRAP SQUEAL PCV

Potential Product Fitment Issues

For all P3 five cylinder Turbo (S60/V60/XC60/V70) and P1 five cylinder from engine 3285662 onward.

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About Aftermarket

Aftermarket parts are a reasonably priced and good alternative to OE products. We often supply aftermarket products in place of OE parts that are no longer available as well. 

Some items will be better than stock or considered an upgrade from the OE design in the aftermarket brand. 

Other items will work as a less expensive alternative to stock. 

We will not sell a product that we do not believe in, so rest assured you are fine with the aftermarket brand in most applications!

If you have any questions, contact our customer service team to advise on the best aftermarket products for your Volvo.

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