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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 | #207,758 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 3,606 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 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
H**M
ممتاز
جيد
E**R
SI ME FUNCIONO!
SI ME FUNCIONO !! LO RECOMIENDO.
H**S
WORKED GREAT. EMERGENCY INSURANCE PAID OFF.
Just used an almost 5-year old bottle of this stuff on a 2007 F150 4.6L with the normal radiator, it was pissing everywhere, it got the truck 12 miles home without a drop leaking!
Z**R
Must Try.
Looks like it worked. No more leaks.
Trustpilot
1 month ago
5 days ago