--- product_id: 11686229 title: "Bar's Leaks Block Seal Head Gasket Sealant (Pack of 4),1100-4PK" price: "442.74 DT" currency: TND in_stock: true reviews_count: 13 url: https://www.desertcart.tn/products/11686229-bars-leaks-block-seal-head-gasket-sealant-pack-of-4 store_origin: TN region: Tunisia --- # Fire-resistant refractory fibers Permanent ceramic-type seal Bulletproof-strength aramid fibers Bar's Leaks Block Seal Head Gasket Sealant (Pack of 4),1100-4PK **Price:** 442.74 DT **Availability:** ✅ In Stock ## Summary > 🛠️ Seal the deal before the mechanic does! ## Quick Answers - **What is this?** Bar's Leaks Block Seal Head Gasket Sealant (Pack of 4),1100-4PK - **How much does it cost?** 442.74 DT with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.tn](https://www.desertcart.tn/products/11686229-bars-leaks-block-seal-head-gasket-sealant-pack-of-4) ## Best For - Customers looking for quality international products ## Why This Product - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Trusted by Thousands:** 4.2-star rating from 767 users who regained engine confidence and avoided costly downtime. - • **Coolant Leak Terminator:** Stops all coolant leaks—just flush antifreeze first for flawless performance. - • **Bulletproof-Grade Repair Power:** Aramid and refractory fibers create a heatproof, ultra-strong seal that locks cracks permanently. - • **Universal Engine Compatibility:** Works seamlessly on gasoline, turbocharged, diesel, cast iron, and aluminum engines. - • **Easy DIY Fix with Pro-Level Results:** Step-by-step instructions make this a quick, cost-effective alternative to expensive repairs. ## Overview Bar's Leaks Block Seal Head Gasket Sealant is a high-performance, fiber-reinforced formula designed to permanently repair blown head gaskets, cracked heads, and coolant leaks across a wide range of engines. Combining bulletproof-strength aramid fibers with heat-resistant refractory fibers, it forms a durable ceramic-type seal that restores engine integrity and prevents overheating. Ideal for vehicles that can idle 20 minutes without overheating, this product offers a cost-effective, easy-to-use solution trusted by hundreds of users to extend engine life and avoid expensive repairs. ## Description For most vehicles, this is the last chance before going to a junk yard or paying an expensive repair bill. This product contains a blend of aramid and refractory fibers giving the strength of a bullet proof vest and the heat resistance of fire-proof clothing. As these particles penetrate a crack or the blown head gasket area, they lock together and bond forming a hard permanent ceramic type seal. Your vehicle is a good candidate for this product if it can idle for 20 minutes without overheating or having to add coolant. Works effectively on cast iron or aluminum blocks & heads. Detailed instructions on back booklet label take you through each step of using the product. Review: Leak into the Cylinder - Had a small leak into one of my cylinders causing a misfire, after using this the misfire was gone. I’m not sure how long it’ll last but it gives me time to figure out the real problem. The directions were perfect and following them to a T will make it easy. As opposed to finding the leak this was a cheap fix. It does say it’s permanent but we will see how long it lasts while I save money for a mechanic. Everybody told me it would gunk up the heater but by following the instructions my heat works fine and no longer bubbles on the passenger side when i turn. 5 stars for a quick fix Review: It really works! - It has made a noticeable improvement in my coolant temperature ## Features - REPAIRS BLOWN HEAD GASKETS: This product contains a blend of aramid and refractory fibers giving the strength of a bullet proof vest and the heat resistance of fire-proof clothing. As these particles penetrate a crack or the blown head gasket area, they lock together and bond forming a hard permanent ceramic type seal. - REPAIRS CRACKED HEADS & BLOCKS: Your vehicle is a good candidate for this product if it can idle for 20 minutes without overheating or having to add coolant. - REPAIRS INTAKE GASKET LEAKS: Works on gasoline engines, turbocharged engines, diesel engines, and heavy duty engines. - STOPS ALL COOLANT LEAKS: Works effectively on cast iron or aluminum blocks & heads. - Head Gasket Sealant is NOT COMPATIBLE with antifreeze and must only be added to the cooling system after ALL ANTIFREEZE has been flushed and removed. ## Technical Specifications | Specification | Value | |---------------|-------| | Customer Reviews | 4.2 out of 5 stars 767 Reviews | ## Images ![Bar's Leaks Block Seal Head Gasket Sealant (Pack of 4),1100-4PK - Image 1](https://m.media-amazon.com/images/I/61S2FMKwngL.jpg) ![Bar's Leaks Block Seal Head Gasket Sealant (Pack of 4),1100-4PK - Image 2](https://m.media-amazon.com/images/I/61Ao8rIpHYL.jpg) ![Bar's Leaks Block Seal Head Gasket Sealant (Pack of 4),1100-4PK - Image 3](https://m.media-amazon.com/images/I/51SFF6fN3zL.jpg) ## Available Options This product comes in different **Size** options. ## Customer Reviews ### ⭐⭐⭐⭐⭐ Leak into the Cylinder *by J***N on July 5, 2026* Had a small leak into one of my cylinders causing a misfire, after using this the misfire was gone. I’m not sure how long it’ll last but it gives me time to figure out the real problem. The directions were perfect and following them to a T will make it easy. As opposed to finding the leak this was a cheap fix. It does say it’s permanent but we will see how long it lasts while I save money for a mechanic. Everybody told me it would gunk up the heater but by following the instructions my heat works fine and no longer bubbles on the passenger side when i turn. 5 stars for a quick fix ### ⭐⭐⭐⭐⭐ It really works! *by C***. on May 2, 2026* It has made a noticeable improvement in my coolant temperature ### ⭐⭐⭐⭐⭐ Takes time and effort to use this product, but it's worth the work. Much less costly and easier than replacing a head gasket. *by G***S on October 12, 2015* 1999 Olds Intrigue with 3.5L engine, 162,000 mile. Head gasket leaks are very common with this engine. Had a very small head gasket leak, losing about 8 oz of coolant in 3000 miles. Could smell the leak but the coolant would boil away from the leak area before it had a chance to drip out. I used the product as directed about two months ago. The leak stopped immediately and the fix appears to be lasting fine. Keep in mind that using this product is a two day adventure. You must triple or quadruple flush the cooling system first. There are several lengthy run and cool cycles required. Then flush thoroughly again before adding coolant. Take your time, let the engine cool overnight in the final phase. In the end, your patience and work will pay off with a successful fix. ## Frequently Bought Together - Bar's Leaks Block Seal Head Gasket Sealant (Pack of 4),1100-4PK - Bar's Leaks 1109 Liquid Copper Block Seal, Intake and Radiator Stop Leak, 18 oz. | One Step, Safe for All Cooling Systems - Bar's Leaks Liquid Aluminum Radiator and Heater Core Stop Leak. 6 Pack,1186-6PK --- ## 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.tn/products/11686229-bars-leaks-block-seal-head-gasket-sealant-pack-of-4](https://www.desertcart.tn/products/11686229-bars-leaks-block-seal-head-gasket-sealant-pack-of-4) --- *Product available on Desertcart Tunisia* *Store origin: TN* *Last updated: 2026-08-27*