Hello all,

This is a fairly easy question that I've spent 4 days scouring the internet to find the answer with no luck. I was wondering if any of you would happen to know the size of the coolant line that goes to the heater core.

My heater core developed a major crack in it during a "spirited" drive and I wish to replace both lines with one line so I don't have to worry about any connector failure.

Thanks for your time and is there anyone out there that can help me get everything done the easy way in terms of line change. My car is a JDM 92 FD.

 

they are 1" od hoses
both molded mazda numbers
fd0161211a
fd0161212a

 

Ha thanks. those part numbers would come in handy but im just going to use one piece of pipe and completely bypass the heater core.