Cast Aluminum Cooling System Upgrade Kit | Mk4 | TT 1.8T Reviews

4.5 Rating 31 Reviews
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Well made, great fitment
Helpful Report
Posted 6 years ago
Very solid solution to an oem issue. The aluminum is robust and will not fail like the factory plastic coolant parts. Would give this product 5 stars if the outlet flange on the head had an O ring, instead it was supplied with a paper gasket that did not seal. I ended up using coolant safe RTV to seal the flange to the head. The flanges performed perfect through a 14 hour endurance race.
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Posted 6 years ago
There was a great deal of flashing and sharp transitions in the internal castings of these parts that I felt needed to be ground and filed out. In addition, the split pipe coolant fitting is not for the TT Mk1 AMU 225 so save your money and order the other 3 flanges separately.
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Posted 6 years ago
Best upgrade i have install so far
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Posted 6 years ago
Simply put, its the best solution to a typical crack in the coolant flange. Would recommend to everyone just for a higher quality upgrade.
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Posted 7 years ago
Outstanding upgrade for my 1.8t leaking plastic flanges.
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Posted 7 years ago
I bought the hose connections thinking that they would be an awesome upgrade to my GTI. When I received the fittings the casting of the inside of them was horrible the opening where small and rough. I had to grind them out and sand blast them to be functional. They where not made to please me because I had to do most of the clean up work on them myself. I have pictures I can send of them.
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Posted 7 years ago
Replaced hard-to-reach plastic cooling system components after a bout of leaks due to aging plastic thermostat housing and flanges. Leaking due to plastic warpage was not in my mind.
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Posted 7 years ago