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PF63E vs PF63 ?

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Alright!  Give me the skinny on this.  My 2021 GMC Sierra 1500 manual says PF63E for an oil filter.  I have looked online and see it some places while others cross it with just a PF63.  Some opinions say it is the same even, while others say the oil pressure bypass is a different pressure.  I am sure this has been beaten up before, but not as much as I would have expected.  Some places online I see the crossover to PF63 is a shorter filter.  Does the "E" stand for extended length or something?    First GM truck I have had in years.  What am I missing or need to know?


oil filter etc.jpg

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The E was the revised version of the filter when it went to a 22psi relief valve.  GM has now gone back to just using a PF63. It is the same as the PF63E.  No change and why they dropped the E is beyond me but either one will work.


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