--- product_id: 413613751 title: "Bar's Leaks 1186-6PK Liquid Aluminum Stop Leak - 16.9 oz., (Pack of 6)" brand: "bar's leaks" price: "€ 257.95" currency: EUR in_stock: true reviews_count: 5 category: "Bar's Leaks" url: https://www.desertcart.gr/products/413613751-bars-leaks-1186-6pk-liquid-aluminum-stop-leak-16-9 store_origin: GR region: Greece --- # Reduces overheating with Xtreme Cool™ No draining required, easy application Permanently seals coolant leaks Bar's Leaks 1186-6PK Liquid Aluminum Stop Leak - 16.9 oz., (Pack of 6) **Brand:** bar's leaks **Price:** € 257.95 **Availability:** ✅ In Stock ## Summary > 🚗 Seal the deal on leaks before they seal your fate! ## Quick Answers - **What is this?** Bar's Leaks 1186-6PK Liquid Aluminum Stop Leak - 16.9 oz., (Pack of 6) by bar's leaks - **How much does it cost?** € 257.95 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.gr](https://www.desertcart.gr/products/413613751-bars-leaks-1186-6pk-liquid-aluminum-stop-leak-16-9) ## Best For - bar's leaks enthusiasts ## Why This Product - Trusted bar's leaks brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Leak-Proof Confidence:** Scientifically engineered to permanently seal leaks in radiators, heater cores, gaskets, and freeze plugs—stop overheating before it starts. - • **Next-Gen Cooling Tech:** Infused with Xtreme Cool™ to lower water temperature and prevent system overheating, keeping your engine running smooth. - • **Hassle-Free Application:** No draining or disassembly needed—just pour in and watch leaks vanish, saving you time and costly repairs. - • **Universal Compatibility:** Works seamlessly with all traditional and extended life coolants—yellow, orange, pink, red, blue, purple, green, silicate & non-silicate based. - • **Trusted by Pros & DIYers:** Backed by 3,600+ reviews and recommended by automotive experts for reliable, instant leak sealing. ## Overview 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. ## Description Bar’s Leaks® Liquid Aluminum Radiator & Heater Core Stop Leak is the best radiator stop leak money can buy. Scientifically formulated to permanently seal coolant leaks that are the cause of most overheating problems. Liquid Aluminum is part of the next generation stop leak line which not only seal leaks, but also conditions the system. Contains Xtreme Cool™ which stops overheating and reduces water temperature. It is guaranteed to safely and easily seal leaks in plastic, aluminum and metal (copper / steel) radiators, heater cores, gaskets and freeze plugs. It will not harm the cooling system, no draining is required. Use with ALL types of traditional or extended life coolant including yellow, orange, pink, red, blue, purple and green silicate based & non-silicate based (OAT/HOAT) 50-50 mix antifreeze, and/or water. For most vehicles leaks seal instantly. Review: 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 Review: 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. ⭐⭐⭐⭐⭐ ## Features - STOPS COOLANT LEAKS: Scientifically formulated to permanently seal coolant leaks that are the cause of most overheating problems. Liquid Aluminum is part of the next generation stop leak line which not only seal leaks, but also conditions the system. - SEALS HEATER CORE LEAKS: Contains Xtreme Cool which stops overheating and reduces water temperature. - SEALS GASKETS: It is guaranteed to safely and easily seal leaks in plastic, aluminum and metal (copper / steel) radiators, heater cores, gaskets and freeze plugs. - SEALS FREEZE PLUGS: It will not harm the cooling system, no draining is required. - USE WITH ALL TYPES OF TRADITIONAL OR EXTENDED LIFE COOLANT: Including yellow, orange, pink, red, blue, purple and green silicate based & non-silicate based (OAT/HOAT) 50-50 mix antifreeze, and/or water. ## Technical Specifications | Specification | Value | |---------------|-------| | 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 | ## Product Details - **Brand:** Bar's Leaks - **Item Weight:** 544 g - **Liquid Volume:** 16.9 Fluid Ounces - **Material:** Aluminium - **Package Information:** Cartridge ## Images ![Bar's Leaks 1186-6PK Liquid Aluminum Stop Leak - 16.9 oz., (Pack of 6) - Image 1](https://m.media-amazon.com/images/I/71c4l2RbsDL.jpg) ![Bar's Leaks 1186-6PK Liquid Aluminum Stop Leak - 16.9 oz., (Pack of 6) - Image 2](https://m.media-amazon.com/images/I/61gkAvkEGTL.jpg) ![Bar's Leaks 1186-6PK Liquid Aluminum Stop Leak - 16.9 oz., (Pack of 6) - Image 3](https://m.media-amazon.com/images/I/61wodHFr0VL.jpg) ## Available Options This product comes in different **Size** options. ## Customer Reviews ### ⭐⭐⭐⭐⭐ Barr’s is the way to go. *by S***I on 29 May 2025* 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 ### ⭐⭐⭐⭐⭐ Worked for My Coolant Leak *by A***S on 22 August 2026* 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. ⭐⭐⭐⭐⭐ ### ⭐⭐⭐⭐⭐ ممتاز *by H***M on 11 February 2022* جيد ## Frequently Bought Together - Bar's Leaks Liquid Aluminum Radiator and Heater Core Stop Leak. 6 Pack,1186-6PK - ATP Automotive AT-205 Re-Seal Stops Leaks, 8 Ounce Bottle - Bar's Leaks 1109 Liquid Copper Block Seal, Intake and Radiator Stop Leak, 18 oz. | One Step, Safe for All Cooling Systems --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.gr/products/413613751-bars-leaks-1186-6pk-liquid-aluminum-stop-leak-16-9](https://www.desertcart.gr/products/413613751-bars-leaks-1186-6pk-liquid-aluminum-stop-leak-16-9) --- *Product available on Desertcart Greece* *Store origin: GR* *Last updated: 2026-09-02*