I have a D16Z6 and am looking for the threading of the rad fan thermoswitch on the thermostat housing.

Also looking for the threading of the heater hose "connector" that threads into the head.

 

u can buy a new fitting from majestic honda its 5 bux. i dont understand what ur saying about the thermo switch. if ur looking for a new switch or what? are u retapping them out or what?

 

I am looking for plugs to block those off.

 

May I ask why?

You can just leave the switch threaded on and not have anything attached to it, not as pretty maybe?

Or have it welded up?? maybe.

 

I don't need the heater core. The radiator fan is on a manual switch. I want to use the switch hole for an aftermarket coolant temp gauge probe, but can't find the right plug. I want to plug the head fitting mostly for looks. I know I can use some hose and a bolt/cap, but I am looking for other options first.

 

Do this, take the thermo switch out and to a hardware store and match up the threads, if you can get a bolt that large, then cut it down to flush out with the thermostat housing.

 

u wont find plugs for these and the one on the head is a fine thread. u can take the fitting out and go to ur local hardware store and see if u can find a bolt to put in its place.