Oil sending unit hole issue

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projectmidnight74

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Retro fitting for his truck has been a nightmare lol. So I'm trying to install a new oil pressure gauge. But I can't get this thing off. Wtf is it and what tool do I need. None of my sockets will grab it.
 

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squaredeal91

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Its just a pipe plug.
Did you try a 12 point socket?
Also when you find a close one just tap it on and loosen it up
 

bucket

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There are sockets made for them if you can’t get vise grips on it.
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Yep, what he said^^^
It's just a square drive pipe plug. It's 1/8" NPT thread. The size of the square drive varies by manufacturer.
 

WFO

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How about using a 3/8" or 1/2" deep socket ,with the square end on the plug, and turn it with a pipe wrench?
 

Grit dog

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^^^^^^^or use the right Allen wrench in the end of said socket?^^^^
Male Allen socket back to square drive from the socket on the pipe plug is a solid reverse engineer to get it back to something you can us an impact on if it’s stuck stuck.
 

1STLS1

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Is there an easier pipe plug to reach down by the oil filter to tap into the oil gallery? Maybe with a allen head, that you could remove and add a sensor?
 

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