Radiator Stop Leak 2X Concentrate


  8 Reviews

Stops and seals antifreeze/coolant leaks. Bar’s Leaks Radiator Stop Leak 2X Concentrate Sealer is specially designed to stop minor to moderate cooling system leaks and drips caused by normal cooling system wear and age. It works with ALL types and colors of antifreeze coolant and/or water. Which is one of our commitments to customers: no matter what product you choose, our radiator stop leak or something else entirely, you can also count on effectiveness and ease-of-use. There’s no special automotive expertise needed to fix a radiator leak with Bar’s Leaks.

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When you need to fix a radiator leak, you don’t want to spend the time or deal with the hassle involved in scheduling a trip to the mechanic or dealership. And then there’s the cost of getting a radiator stop leak solution. But getting the fix radiator leak solution you need shouldn’t be time consuming and it shouldn’t be expensive. That’s why, at Bar’s Leaks, we’ve developed our line of radiator top leak products, including our 2X Concentrate.

Simply watch Bobby and Caitlin in our how-to video, and they will show you how easy it is to install this product.


At Bar’s Leaks, our specialty is offering a variety of products that provide fast, effective, affordable chemical repair solutions. In addition to our radiator stop leak products, we also offer leak-stopping products related to cooling systems, head gaskets, engine oil, power steering, transmissions and even hydraulic fluid. If you know how to pop the hood of your, you’ll be able to use products from Bar’s Leaks — it’s that easy.

We have a team of top-grade chemical engineers who are always working to enhance our existing products and to develop new products in response to the latest in auto manufacturer innovations and technologies. Know that we pour careful research and attention to detail into each chemical repair solutions in order to ensure that it meets the highest standards of effectiveness.

You’ll no doubt find plenty of alternative products that fix radiator leaks, but many of these products don’t work as effectively as advertised, and some can even make your situation worse. For nearly 70 years, Bar’s Leaks has been the number one national chemical repair solution provider that everyday drivers can trust for effective solutions.

Made in the U.S.A, just an hour outside of Detroit, Bar’s Leaks products are the most trusted in the industry. We’ve served tens of millions of customers through our many decades of service, and we’ve been able to continue serving drivers just like you because of the speed, effectiveness and affordability that comes with our radiator stop leak and other products.

Fix your radiator leak with Bar’s Leaks today.

Customer Reviews

  8 Reviews
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 8 reviews
by G. & S. H. - Tulsa, OK on Bar's Leaks

While traveling to Oshkosh for the airshow, we had a blowout on one of the front tires on our motorhome. We then discovered a radiator leak. Being 800 miles from home, we were desperate to have this fixed and avoid more disaster. We decided to try Bar's Leaks 2X Concentrate. IT WORKED! Our motorhome didn't leak for the entire week and we drove back to Tulsa over 800 uneventful miles! Thanks for a great product.

by R. Druckemiller - Lewistown on Bar's Leaks

Wow... Awesome, I drive a 1987 Ford Ranger that developed a leak in the radiator, I have tried other stuff in the past with other trucks, but nothing worked. Now I stopped and got a bottle of the Bar's Leaks 2X liquid stop leak concentrate, now at this time I'’m running already, I had to get my son off the bus, so I put the bottle in and left my truck run as I ran in the house, took me about 10 min. I came back out to get him off the bus, and I noticed the leak already had stopped, holy cow… That was quick...I’'m now a customer for life...Thank you again for making a great product.

by B. B. - Southaven, MI on Bar's Leaks

I just want to thank you for a product that works as advertised. I had a small leak in my radiator and decided to try your product. I honestly did not think it would work, but hey, it's cheaper than a radiator repair. I followed the instructions exactly, and Bar's Leaks worked exactly as promised. You have a customer for life. Thank you.

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