Anyone know what ID size of coolant hose that is running from the thermostat housing to the hard turbo feed line (Evo IX)? Mine has a hole in it and Don Herring doesn't have one in stock so I'll just get some Gates replacement hose from O'Reilly.

 

I think 3/8 fuel line fits it...... If I remember right the last time I replaced my I picked a hose that fit tight on the valve cover vent, and it fit the turbo coolant lines too... but its been a while and I have slept a lot since then... :-)

 

Napa has a hose "fitting" board so if you can bring the hose in they can measure it for you.

 

Thanks, someone else told me 3/8" too so I'll give that a try. When you replaced yours did you buy a hose with a molded 90* bend or just curve a straight piece?

 

On my car I use the straight, but when I did one for kelly a long time ago I actually found a molded 90 that worked really well, just require a little trimming on one of the legs...

I usually just go to Autozone or O'Reilly and just ask if I can walk through their molded hose selection and take a look at what they have....

 

Thanks to everyone who replied! I got the line replaced with a 3/8" molded 90-degree bend Gates coolant hose that I bought for $10 from O'Reilly; just had to trim to fit.