Plug in T-stat housing
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Cargo Master
Joined: Oct 2010
Posts: 2,089
Likes: 16
Plug in T-stat housing
Does anyone know what size the plug in the tstat housing is? I thought it was 5/16" hex but cannot really tell. It could be square. Its 15 years old probably.
Its super tight and wanted to try and be sure before laying into it.
Its super tight and wanted to try and be sure before laying into it.
Post Fiend
Joined: Mar 2007
Posts: 26,966
Likes: 50
From: Texas
Checked Bob's site to see if he mentioned the size. He only says it's a 3/8" NPT plug. That should at least mean it's a standard alan wrench (of socket) to get it out.
That plug has been out of my truck for years, and my recent water pump replacement I don't remember what size it needed to remove it.
If 5/16" feels like it fits, I'd go with that. If it's too loose, try something metric.
That plug has been out of my truck for years, and my recent water pump replacement I don't remember what size it needed to remove it.
If 5/16" feels like it fits, I'd go with that. If it's too loose, try something metric.
Lead Driver
Joined: Jun 2003
Posts: 8,298
Likes: 25
From: Damon (South East Texas)
Plug drive configurations can vary. My OEM water pump (replaced at 98k miles) had a 7/16" external square head 3/8'' NPT plug. I still have the pump and could verify this. I replaced the pump before later adding a DIY coolant filter set up. The replacement pump had the allen head plug, if I'm not mistaken, that was removed during the filter install.
Beer Fridge Finder
Joined: Apr 2003
Posts: 14,988
Likes: 1,151
From: Savannah, GA
Coolant filter? Sounds like a great idea. I love this place. Where does one put his hands on said filter system? Is it like a flow through fuel filter, or is it a canister, or what? Sorry about the hijack... as far as I know the plug is 7/16" NPT.
Post Fiend
Joined: Mar 2007
Posts: 26,966
Likes: 50
From: Texas
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Cargo Master
Joined: Oct 2010
Posts: 2,089
Likes: 16
That is why i want to remove the plug. Sinister and riffraff both have the filter kit premade for sale. I got some really nasty stuff when I did the flush and hose change
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Beer Fridge Finder
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From: Savannah, GA
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