Cooling System Repair (1150)

Cooling System Repair


  9 Reviews

Bar’s Leaks Cooling System Repair has twice the cooling system repair performance of other products by not only stopping cooling system leaks, but also adding future protection. It’s scientifically formulated to stop coolant leaks, thereby reducing antifreeze loss, while correcting other cooling system problems and helping to prevent costly repairs and breakdowns. In addition, Cooling System Repair contains Xtreme Cool™, which stops overheating and reduces water temperature.


NOTE: Cooling systems that are dirty or partially clogged should be flushed before usage. Protect from freezing.

Install only in a cold engine. Shake well. Pour entire contents of the dual-chamber bottle directly into the radiator. If direct access to radiator is not available, install in reservoir/overflow tank. Fill radiator overflow tank to proper level and reinstall cap. Drive/idle engine for 15 minutes. If leak continues, second application may be required or mechanical attention is needed. Leave Cooling System Repair in cooling system for continued protection. Depending on the cooling system problem, results will either be immediate or noticeable within two (2) days or 100 miles of driving.

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We know it can be frustrating when you’re in a rush and notice a puddle of fluid under your car. We’ve been there. There’s no question that fixing coolant leaks and other car leaks can be incredibly frustrating and inconvenient for everyday drivers. Lucky for you, we have the perfect product to help you get back on the road and back to your life.

This formula’s performance is the result of decades of research and careful testing by our team of top-flight chemical engineers. At Bar’s Leaks, you’ll find products that are designed and manufactured to fit into the lifestyle and budget of everyday drivers just like you. There’s no shortage of coolant leak products on the market, but many of these products fail to get the job done, and others can make your cooling system problem even worse.

At Bar’s Leaks, you find only proven products that get the job done. There’s no special automotive expertise needed. In fact, if you know how to pop the hood of your car, you can use our antifreeze stop leak products.

Our product will help you quickly and safely get your car back on the road. It’s worked for hundreds of thousands of customers — it’s time to let it work for you.


Don’t break your budget paying for expensive leak issues related to cooling systems, head gaskets, engine oil, power steering or transmissions. Trust Bar’s Leaks for chemical repair solutions that alleviate these issues and more. We’re the best-known leak repair brand in the industry, because we have nearly 70 years of experience in delivering highly usable, effective, and affordable products to drivers. The moment when you notice a puddle underneath your vehicle no longer needs to be a moment of panic. With antifreeze stop leak and other products from Bar’s Leaks, you have fast and easy solutions that won’t strain your wallet.

Bar’s Leaks is also made in the U.S.A., just an hour outside of Detroit. To ensure that we’re always staying ahead of the latest automotive technology innovations, our team of chemical engineers is always developing new products that can repair leaks even in cars with modern technologies such as direct injection, turbocharging and other modern automotive systems. When you have a leak that desperately needs repair, trust the experts at Bar’s Leaks.

Get your cooling system repair solution today.

Customer Reviews

  9 Reviews
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 9 reviews
 by Francisco- Az
Cooling System Repair- Worked Like a Charm!

Bought this product as a '"hail mary" before I dropped $250 (plus labor) on a new radiator for my 2006 Ford E-350 van as the radiator developed a 1 inch crack in the plastic portion along the top. To my pleasant surprise, the crack was sealed within 5 minutes of running the engine, just as the bottle claimed. I have driven the van countless miles with outside temperatures reaching 105 degrees and it is showing no signs of failure. Great product!

 by Eduardo- Atlanta,GA
Great Product! Instant Results!

Used it in my 00 Silverado due to a heater core leak. Windows would fog up from the steam coming out of the vents. Drained some coolant to make room and poured it in. Ran the engine and wiped the windshield. Saw results after 5 minutes.

 by R. F. Rey - Alpopka, FL

I had a leak in the radiator of my car and I used your product and today saved a lot of money. Before that, I have to buy a gallon of coolant every week and now I don't buy coolant any more, I forgot when was the last time I had to buy it. After that, I bought your products for engine and transmission and used them. My old car is working quiet and it is saving gas, I don't know the exact quantity but I know that I am saving money in gas. I am very happy with your Cooling System Repair (part 1150) blue and black product in the clear double sided bottle. You guys are the best, thanks again.

 by Rodney V. - Blountville,Tennessee

I had a substantial drip coming from the water pump. Your product was able to seal it after a 20 drive. Thank you for a great product.

 by Roxas Hulse - Hialeah FL

Let me preface by saying I don't know much about cars. I only know that I've had horrible luck with them. I've done a lot of work and maintenance on my Ford Escape 2005. The first time it was overheating, was because the fans were broken. After I got them replaced, the car ran good until it got a leak somewhere in the reservoir/tubes to the radiator. For months I had to keep dumping coolant/water into the reservoir EVERY SINGLE TIME I needed to get to work or even just go down a few blocks cause it would start leaking badly after just a few minutes of putting it in

I tried for weeks to find the leak but could never find it. I was skeptical that the Cooling System Repair (1150) was going to work, but I tried it at the recommendation of a friend. I am happy to say that it definitely works. In my case my car is still overheating but at least a lot less faster, and I haven't had to add any coolant or water for a week now. Just remember to SHAKE WELL!

 by Mike C. - Atlanta, GA

Tried today on a 2004 BMW 325ci. I had a radiator leak and almost paid $300+ dollars to replace the radiator. I saw this product online, called my mechanic and asked his opinion. He said, "why not?" I bought it for under $10 at Walmart. Followed the directions and have been driving all day with no more leaks. Seems to be working GOOD! Leak has stopped!

 by Gary - Jacksonville, FL

Used this for unknown leak in the top of my girls' '98 Crown Victoria engine. Worked great.

 by B.J. - NC

I have a 1989 Jeep Wrangler with a small leak in the top half of the cooling system. I would constantly have to top up the radiator with antifreeze. So get this, I was in a store looking to get a phone and we happened to get talking about our cars. The woman helping me advised me to try the Bar's Leaks Cooling Repair. I put it in and to my surprise it fixed the leak. Thanks to the woman in the store and especially to Bar's Cooling Repair. The stuff is magic!

 by Damien E. - Palm Coast, FL

I never write companies usually. However the experience I have had as a single dad keeping an 18 year old Nissan Xterra on the road merits this letter.

I had a steering pump leak that was going to cost $550. I was adding fluid every other day. I cannot tell you how many $5-6 dollar bottles of fluid I added to the reservoir - always the cheapest before I decided to buy the most expensive (your product), and see what that would do... That was 2 years ago, I never have had to add a drop since, and never paid for that repair, It "aint broke" so I don't fix.

I started to have a coolant pump leak. No big deal, right? I can swap out the pump, I got tools... then I learn the pump is timing belt driven (i.e... Im not messing with that in my driveway) and it's going to be $600 to get that done. Stressing about when/where Im going to be able to pay for that repair... I brainstorm maybe the company (you guys) that made the awesome product that for $12 FIXED my steering pump makes something for coolant leaks... I go back to AutoZone and sure enough you do... It took two bottles, but now, the leakage is gone, car runs great, never overheats. I check the coolant level daily but never a drop in the level anymore... You guys are AWESOME!!!

In 2 years, you saved my family over $1,150 (for 3 bottles purchase maybe $40 bucks outlayed) that we didn't have to spend, I will recommend your product to everyone!

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