My rubber coolant hose running from the thermostat housing to the turbo coolant feed hard line has a small hole in it so I'd like to replace it. Anyone know what the correct inner diameter hose size is for this? For something so simple I don't see a need to buy a replacement hose from the dealership when I can go to O'Reilly's and get a Gates hose.

 

Hoses tend to all go bad at about the same time. So, maybe, replacing just one is looking for trouble.

 

I inspected all my hoses last night and it looks like the only reason this one is leaking is b/c its rubbing on something; will have to tweak it slightly when installing a new hose. Everything else appears to still be in nice shape.

 

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. It's a $7 part from the dealership but they didn't have any in stock.