Transmission Cooler Line Repair

I'd like to have a buck for every foot of "transmission cooler hose" I sold over the 30 years I worked in the transmission parts business. Use the proper hose and it'll last forever. Back in the day, I put a cooler on the daily driver. Drove it for 10 years and never had a problem. Using vacuum line hose, water pump hose and you're looking for trouble. It might be all right for a very quick patch, but that's all.
Transmission cooler hose was made to be used with obviously transmission oil.


Hose is OK at some locations. But under the car near the headers or exhaust it could turn into a problem. For safety reasons I would never advise anyone to use hose unless its all they have. I myself ran stainless braided hose with Fragola ends on everything.

30 years ago I did things that I learned over the years wasn't the best choice. The parts available today there is no reason to use a hose unless your looking for a quick fix. I admit I did it . Bubbled the line ends and the double clamped them in the opposite direction. After time that hose will get soft from heat at certain locations.

So when someone asked me for advise I tell them the safest way to do it. I wouldn't want to be responsible for someones demise of themselves or their car

Some cars are better off with braided stainless with heat wrap as seen below. I could never run rubber. The braided stuff gets costly. But the burn unit at the ER cost more

Notice the duster above when that fluid caught it was like a flame thrower going through the car. It goes up like fuel when the fluid is hot. Why take the chance.

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