Coolant hoses.. Mack

Unfortunately, that's the 1 hose that costs you an arm and a leg because you can't get it anywhere else. Best thing to do is suck it up and replace it, because if you try to get by with shifting things around or taping it up, it'll just blow out and leave you on the side of the road where that same hose will triple in price because a service truck will have to fetch it and bring it to you along with coolant to fill you back up. If it's after-hours, you might be SOL 'til a Mack dealer opens up again, which possibly means towing your rig into a shop, depending upon whether or not you were able to make it off the road to somewhere you could sit for a while.

Best to just fix it right ASAP while it's convenient for you, rather than waiting until it decides to let go.

 

Depends upon how old they are. Might go through a period where it seems you're changing a hose every other week because they'd all been on there a while...then you'll go a few years without any issues because they're all pretty new again.

 

what a screwed up turd of a design, im glad my Mack does not have that hose. i wonder if you could make up a t with some tubing and use regular straight hoses to couple the ends.