Oil Drain Plug Info
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Fleet Mechanic
Joined: May 2013
Posts: 1,256
Likes: 4
From: NC
Oil Drain Plug Info
Correct oil plug and gasket for 6.9/7.3 IDI.
E9TZ-6730-B
Ebay has them for around $5 shipped.
DONT USE DORMAN STUFF
The Oil-Tite Dorman one the PO put in mine was too long. The gasket would not seal correctly because of this, and it stripped from me trying to get the plug in far enough to seal the gasket. But thankfully didn't harm the pan. Replaced it with a new correct Ford plug and gasket. I put some Permatex Thread Sealant with PTFE on the thread and gasket and it hasn't leaked a drop. Navistar also sells the oil drain plug too. Part# 413441C1
New Ford on left, used Dorman on right. (same style as stripped one)
E9TZ-6730-B
Ebay has them for around $5 shipped.
DONT USE DORMAN STUFF
The Oil-Tite Dorman one the PO put in mine was too long. The gasket would not seal correctly because of this, and it stripped from me trying to get the plug in far enough to seal the gasket. But thankfully didn't harm the pan. Replaced it with a new correct Ford plug and gasket. I put some Permatex Thread Sealant with PTFE on the thread and gasket and it hasn't leaked a drop. Navistar also sells the oil drain plug too. Part# 413441C1
New Ford on left, used Dorman on right. (same style as stripped one)
Thread Starter
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Fleet Mechanic
Joined: May 2013
Posts: 1,256
Likes: 4
From: NC
Idk if the threads stop it, or if its the oil pickup screen above the drain hole too, whatever it is, it doesn't work well with the longer dorman. For the minor price difference, I wouldn't try one again if I had too. the amount of oil its leaked in the last 23k miles is several quarts. Always thought the plug was the oem one, till I did research.
Thread Starter
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Fleet Mechanic
Joined: May 2013
Posts: 1,256
Likes: 4
From: NC
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Postmaster
Joined: Dec 2011
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I'd see if you couldn't put a Teflon washer on that plug as a 'gasket'.
That was on mine, and it's done a great job the last few years.
That was on mine, and it's done a great job the last few years.
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