Hydro fan thermal switch thread size?

Panchira!

Cressida+1jz+GKT550= :)
Jan 3, 2008
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black hole
Hi all Im doing a 1j swap in a cressida and im using the mk3 koyo radiator. the problem im running into is i dont want to buy a hydro fan temp sensor (85 bucks) just to plug the hole. would anyone know the thread size and pitch? thanks a bunch!!!!!!