--- product_id: 191035195 title: "BLUE DEVIL HEAD GASKET SEALANT" brand: "bluedevil products" price: "£109.71" currency: GBP in_stock: true reviews_count: 13 category: "Blue Devil Products" url: https://www.desertcart.co.uk/products/191035195-blue-devil-head-gasket-sealant store_origin: GB region: United Kingdom --- # Long-lasting leak seal Permanent chemical weld Compatible with metal & alloys BLUE DEVIL HEAD GASKET SEALANT **Brand:** bluedevil products **Price:** £109.71 **Availability:** ✅ In Stock ## Summary > 🔥 Seal the deal, skip the garage drama! ## Quick Answers - **What is this?** BLUE DEVIL HEAD GASKET SEALANT by bluedevil products - **How much does it cost?** £109.71 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.co.uk](https://www.desertcart.co.uk/products/191035195-blue-devil-head-gasket-sealant) ## Best For - bluedevil products enthusiasts ## Why This Product - Trusted bluedevil products brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Permanent Leak Seal:** BlueDevil’s unique temperature-activated formula creates a chemical weld that seals head gasket leaks for the long haul. - • **Trusted by Thousands:** With over 2,400 reviews and a solid 4.1-star rating, BlueDevil is the sealant that keeps your engine running and your peace of mind intact. - • **User-Friendly Application:** Simply add to your cooling system—no engine teardown required—making it the go-to quick fix for busy professionals. - • **Cost-Effective Engine Savior:** Avoid costly repairs and downtime with an easy-to-use, professional-grade sealant that saves your wallet and time. - • **Multi-Material Compatibility:** Works seamlessly on metal, aluminum, plastic, cast, and alloy engine parts—versatility that fits your ride. ## Overview BlueDevil Head Gasket Sealer is a professional-grade liquid formula that permanently seals leaks in blown head gaskets, warped or cracked heads, heater cores, and freeze plugs. It reacts to temperature differentials to form a chemical weld compatible with metal, aluminum, plastic, cast, and alloy engine parts. Easy to use and highly rated, it offers a cost-effective alternative to expensive engine repairs. ## Description From the manufacturer Head Gasket Sealer How does it work? BlueDevil reacts to temperature differential created by airflow at the leak point. That temperature differential is the catalyst for the chemicals in Blue Devil to react and form its chemical weld. How long will the repair last? BlueDevil permanently seals leaks. You probably never think of your car’s head gasket until something goes wrong and you’re forced to deal with it. It is a vital component that usually doesn’t require much maintenance, but you will want to do everything you can to prevent it from cracking and becoming a blown head gasket. BlueDevil Head Gasket Sealer is your head gasket repair solution as it will repair and seal leaks in blown head gaskets, warped or cracked heads, heater cores, and freeze plugs. Good for Head Gaskets, Warped or Cracked Heads, Heater Cores, and Freeze Plugs Contains no solid or particulate matter that can harm a vehicles engine Gasket sealant is an alternative solution for costly and time consuming repairs Safe and easy to use, permanent repair Review: Worked great for my Rover! - This product worked for my car that has a leaking/blown head gasket. BUT this is NOT a permanent fix!. It lasted 1 year, the first time I added this to the water. So had to purchase this item again to repeat the process. This item came in a much bigger bottle so you only need to use half of it. It is very easy to use, Just follow the instructions on the back of the bottle. But one thing I didn't bother doing was removing the thermostat before starting the job, I just emptied some of the coolant from the bottom of the radiator, so to leave room in the water system for the Blue Devil liquid when pored in. It worked 100% for me on my Rover 416, year 1998 It may not work for all, but I suppose its worth ago to save the hefty price of paying for a new head gasket ? No complaints, only praise = 5 stars Review: Amazing. - Much to my amazement this product appears to work, I have only done 500 miles or so since adding the product to the cooling system, having meticulously cleaned it before hand, but so far so good. I have not added the antifreeze yet so only time will tell. ## Features - Causes serious eye irritation. - Causes severe skin burns and eye damage. - Causes skin irritation. - Harmful if swallowed. - May cause damage to organs (kidney) through prolonged or repeated exposure. - HEAD GASKET SEALER, CRACKED BLOCK, WARPED HEAD ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B000NOO798 | | Best Sellers Rank | 190,746 in Automotive ( See Top 100 in Automotive ) 805 in Fillers, Adhesives & Sealants | | Brand | BlueDevil Products | | Colour | Blue Bottle / Yellow Label | | Compatible Material | Metal, Aluminium, Plastic, Cast, Alloy | | Customer Reviews | 4.1 out of 5 stars 2,472 Reviews | | Global Trade Identification Number | 00663536383865 | | Item Dimensions | 8.9 x 8.9 x 22.6 centimetres | | Item Form | Liquid | | Item Weight | 32 Ounces | | Item dimensions L x W x H | 8.9 x 8.9 x 22.6 centimetres | | Item weight | 32 Ounces | | Manufacturer | BLUE DEVIL | | Manufacturer Part Number | 38386 | | Material | Aluminium, Metal | | Model Number | 38386 | | Number of Items | 1 | | Style | Head Gasket Sealer | | Style Name | Head Gasket Sealer | | UPC | 663536383865 | | Unit Count | 907.1847 gram | | Water Resistance Level | Not Water Resistant | | Water resistance level | Not Water Resistant | ## Product Details - **Brand:** BlueDevil Products - **Item dimensions L x W x H:** 8.9 x 8.9 x 22.6 centimetres - **Item weight:** 32 Ounces - **Material:** Aluminium, Metal - **Style:** Head Gasket Sealer ## Images ![BLUE DEVIL HEAD GASKET SEALANT - Image 1](https://m.media-amazon.com/images/I/71p8Xb7q1BL.jpg) ![BLUE DEVIL HEAD GASKET SEALANT - Image 2](https://m.media-amazon.com/images/I/81-NdgIkKFL.jpg) ![BLUE DEVIL HEAD GASKET SEALANT - Image 3](https://m.media-amazon.com/images/I/81UGjoPh77L.jpg) ![BLUE DEVIL HEAD GASKET SEALANT - Image 4](https://m.media-amazon.com/images/I/71rTCNkff4L.jpg) ![BLUE DEVIL HEAD GASKET SEALANT - Image 5](https://m.media-amazon.com/images/I/81VOw+CKx3L.jpg) ## Questions & Answers **Q: Im getting combustion in my radiator,not coolant in oil,will it work?** A: I had the same issue of the exhaust going through the radiator and I followed the instructions to the letter and so far so good. I've put a little over 8 thousand miles on it since the repair with no issues. I was sceptical at first but this stuff is truly amazing! **Q: How do I return the product if I have already used it?** A: You can't. **Q: If i just replaced my thermostat do i need to remove it, it's such a pia** A: Yes you need to remove it to use this version, there is another weaker version that you don't have to remove it, that version does not work as well. **Q: I don't get the "remove thermostat" part. If i remove my thermostat where am i going to plug the hose into? Does it mean to replace it with a new one?** A: Most thermostats can be removed without causing a leak. I am guessing that yours might be like my truck where the gasket is incorporated into the thermostat. If so, you can probably adjust the time to allow the thermostat to open and replace it afterward. I cut the guts out of mine but it was probably overkill. ## Customer Reviews ### ⭐⭐⭐⭐⭐ Worked great for my Rover! *by A***B on 6 June 2015* This product worked for my car that has a leaking/blown head gasket. BUT this is NOT a permanent fix!. It lasted 1 year, the first time I added this to the water. So had to purchase this item again to repeat the process. This item came in a much bigger bottle so you only need to use half of it. It is very easy to use, Just follow the instructions on the back of the bottle. But one thing I didn't bother doing was removing the thermostat before starting the job, I just emptied some of the coolant from the bottom of the radiator, so to leave room in the water system for the Blue Devil liquid when pored in. It worked 100% for me on my Rover 416, year 1998 It may not work for all, but I suppose its worth ago to save the hefty price of paying for a new head gasket ? No complaints, only praise = 5 stars ### ⭐⭐⭐⭐⭐ Amazing. *by I***. on 13 September 2015* Much to my amazement this product appears to work, I have only done 500 miles or so since adding the product to the cooling system, having meticulously cleaned it before hand, but so far so good. I have not added the antifreeze yet so only time will tell. ### ⭐⭐⭐⭐⭐ Five Stars *by D***K on 8 July 2015* so car so good time will tell if it works as it should ## Frequently Bought Together - BlueDevil Products 38386 Head Gasket Sealer - 1 Quart - BlueDevil Products 00204 Radiator Flush - 1 Quart - BlueDevil Products 00203 Radiator Flush & Oil Degreaser - 1 Quart --- ## 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.co.uk/products/191035195-blue-devil-head-gasket-sealant](https://www.desertcart.co.uk/products/191035195-blue-devil-head-gasket-sealant) --- *Product available on Desertcart United Kingdom* *Store origin: GB* *Last updated: 2026-06-24*