Pressure Port/ HPOP Reservoir Fill Plug

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Pressure Port/ HPOP Reservoir Fill Plug for Ford 7.3L (96-03)

Replacement o-ring style plug that fits all reservoir fill plugs on the 96-03 and the pressure ports fittings located on the rear of the 99-03 Ford 7.3L Powerstroke fuel bowls.

This plug is also a direct replacement for the HPOP reservoir fill plug.

Strip the head off of your factory plug?

The o-ring fitting assists in obtaining a leak-free seal and ease of future removal

3/16" hex head and has an anti-corrosion coating.

Material: Steel with a anti-corrosion coating.

Order of 1 is a 1 plug that comes with a Viton o-ring.

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  • 5
    works as described and came in record time

    Posted by timothy rothschild on Dec 19th 2021


  • 4
    Hpop fill plug

    Posted by Ryan Moore on Aug 18th 2021

    Only reason it's not 5 stars is because every time I go to remove this plug, the o ring gets caught in the threads and is squeezed between the plug threads and the internal hole threads of the reservoir... I am concerned this friction will damage/break the o ring after a few more removals.

  • 3
    Doesn’t fit a 95’ year model

    Posted by Don Suchan on May 29th 2021

    Does not fit a 95’ 7.3 it is one size smaller on the thread size.

  • 5
    OEM goodness

    Posted by stangjr on May 28th 2021

    I change my reservoir oil every oil change so my original fitting had some wear to it and i would rather replace it now before it strips out and its stuck there.

  • 5
    Fast Service

    Posted by Danny Morrell on May 20th 2021

    Work as indented, you can not have to many.

  • 5

    Posted by Big B on Mar 1st 2021

    Too bad our corrupt government doesn't work as efficiently as the people at Riffraffdiesel does!!!!!!
    Thank you

  • 5
    Part I needed when dealerships wanted me to buy the whole HPOP

    Posted by Jeffrey Gessler on Feb 22nd 2021

    Had part in 3 days downtime was at a minimum, thanks riffraff I'll b back in the future

  • 5
    Hpop fill plug

    Posted by John Davis on Jan 22nd 2021

    I had read somewhere that all 7.3L plugs were the same but there not but they look like they are good quality so I’ll use them for something else.

  • 5
    Hpop fill plug

    Posted by John Davis on Jan 19th 2021

    Very good quality too bad it don’t fit my 94 i had read that they were all the same but I guess just not the 94 &95 powerstrokes.