Cylinder Head Oil Rail End Plug

Part Number:


(You save $4.21 )

High Pressure Oil Rail End Plug & Gasket - Ford 7.3L (94-03)

Oil rail plugs located on either end of the cylinder head require a specialty o-ring if they begin to leak. This is the large round 1 3/4" plug with the 1/2" drive socket hole. During engine rebuild it is good practice to replace these plugs and gaskets since they are almost impossible to reach once the engine is installed in the bay.

Order of 1 is 1 plug, gasket o-ring and instruction sheet.

Ford and Navistar's instructions recommend the use of LocTite 277 threadlocker on the Oil Rail End plugs

Write a Review

19 Reviews Hide Reviews Show Reviews

  • 5
    Oil rail plug

    Posted by GTMully on Apr 5th 2020

    As always Riff raff delivers. Plugs weren't to bad to replace. Shipped fast and oil leaks are gone.

  • 5
    Works like a charm

    Posted by Cody earl on Jul 23rd 2019

    Slapped that puppy in and she works great

  • 5
    Rail End Plug Installation Tip

    Posted by Dave B on Jun 19th 2019

    The right plug is especially a bear to get at. Go to your local hardware store and buy a piece of 1/2" key stock about 1.5" long. You'll find it in one of those "specialty" hardware trays in the big box stores.
    Insert the key stock into a 15mm swivel gear wrench, then work the key stock into the recessed !/2" square hole in the old plugs. It takes both hands but it brought it right out with a little of grunt effort. Worked for me.

  • 4
    Cylinder head oil rail end plug 7.3L

    Posted by Unknown on Sep 24th 2018

    Part arrived as scheduled. Nice price. It was hard to change it out on my 97 F350 7.3L but it is do able without moving the engine. My friend and I unbolted the down pipe from the turbo and lifted it up and over just enough with a crowbar and a prybar together. Recommend a very thin 1/2 drive ratchet to ratchet out the plug.

  • 5
    Head plugs

    Posted by Eric on Jun 4th 2018

    Pulled my injectors for o-rings, figured I should do these while the oil rail was drained. Fronts were a snap, rears were a bit of a nuisance but I also had my old uppipes out so the process was not too bad!

  • 5
    Pain in the butt but no more oil leak!

    Posted by Unknown on Jun 3rd 2018

    The product worked as advertised. It was a pain in the ass to replace but it solved my oil leakage.

  • 5
    Awesome product

    Posted by Jesse on Nov 28th 2017

    Great product. Highly recommend. Get 2 one each side

  • 5
    great product

    Posted by Bob pwrstrktoy on Nov 10th 2017

    It took me three tries to get the plug drivers side next to firewall done correctly need mirrors dental picks and about a pint of beam

  • 5
    Good quality oil rail plug 96 7.3

    Posted by Unknown on Jun 21st 2017

    Thank you for the new Oil rail plugs for my 96 f 250, stopped my leaks :) Also very quick shipping