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🚗 Seal the deal on leaks before they seal your fate!
Bar's Leaks 1186-6PK Liquid Aluminum Stop Leak is a scientifically formulated, easy-to-use liquid solution designed to permanently seal coolant leaks in radiators, heater cores, gaskets, and freeze plugs. Featuring Xtreme Cool™ technology, it reduces overheating and is compatible with all types of traditional and extended life coolants. No draining required, making it a fast, reliable fix trusted by thousands of users and automotive pros alike.




| ASIN | B00BYS6YLQ |
| Best Sellers Rank | #213,159 in Car & Motorbike ( See Top 100 in Car & Motorbike ) |
| Brand | Bar's Leaks |
| Brand Name | Bar's Leaks |
| Compatible Material | Aluminium |
| Country of Publication | USA |
| Customer Reviews | 4.3 out of 5 stars 3,612 Reviews |
| Global Trade Identification Number | 10046087011864 |
| Included Components | (6) Radiator and Heater Core Stop Leak |
| Item Dimensions | 6.6 x 6.6 x 18.8 Centimeters |
| Item Form | Liquid |
| Item Highlight | Safely and Easily Seal Leaks in Plastic, Aluminum and Metal Radiators, Heater Cores, Gaskets, Freeze Plugs, 16.9oz Bottles |
| Item Type Name | Liquid Aluminum Radiator and Heater Core Stop Leak. 6 Pack |
| Item Weight | 544 g |
| Item dimensions L x W x H | 6.6 x 6.6 x 18.8 Centimeters |
| Manufacturer | Bar's Leaks |
| Manufacturer Part Number | 1186-6PK |
| Material | Aluminum |
| Material Type | Aluminum |
| Model | 1186-6PK |
| Number of Items | 6 |
| Number of Packs | 1 |
| Style | Liquid |
| Style Name | Liquid |
| Surface Recommendation | Miscellaneous |
| Unit Count | 101.4 Fluid Ounces |
| Warranty Description | No |
| Water Resistance Level | Not Water Resistant |
S**I
Barr’s is the way to go.
I’d say it worked great, I did something very stupid, I had my van idling on my driveway for about twenty minutes or so and my neighbour saw smoke coming from it and alerted me, most of the fluid leaked out of the radiator and in the process it sprung a couple of leaks, went and checked on line with my very good friend the one and only Scotty Kilmer and Barr,s radiator stop leak is what he swore by, no regrets using it, most of the leaks are gone just a minor drip from what I believe is coming from the drain plug, glad I used Barr’s Stop Leak
A**S
Worked for My Coolant Leak
It worked for me, although I can’t speak for everyone’s situation. A lot depends on the type of leak you have—whether it’s coming from a hose, the radiator, or another part of the cooling system. In my case, I used it and it stopped the leak. I would say it may work well if the leak is small or minor. If you have a major leak, your results may be different. For the price, it was worth trying and it helped solve my problem. ⭐⭐⭐⭐⭐
H**M
ممتاز
جيد
E**R
SI ME FUNCIONO!
SI ME FUNCIONO !! LO RECOMIENDO.
Z**R
Must Try.
Looks like it worked. No more leaks.
Trustpilot
2 months ago
2 months ago