lambda thread size

johnny gtir

Well-Known Member
i know this has been covered as i have read it myself recently but tried searching and can not find it.I think it is M12 but is it fine 1.25 or coarse 1.50? could be wrong as i need to order a boss to weld in


as a bonus question anybody running a good quality egt sensor and could tell me the size/threads of the boss just i am getting a exhaust built so need both to get welded in
 
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