Taking care of your vehicle should be one of your top priorities, and for a very good and obvious reason; safety. One of the most common, but hardly noticed concerns for an automotive is a blown head gasket. This is a serious issue that may cause fuel, water and oil to leak that could potentially get mixed into crevices. This causes engine damage and will require precious time and hard-earned money to fix. Avoid having these kinds of concerns, and get only the best head gasket sealer out on the market in 2017. To help you with the search, we provide you our top 10 picks based on customer reviews, cost, features, and of course performance.

Comparison of the Top-Rated Head Gasket Sealers


BlueDevil Head Gasket Sealer

BlueDevil Head Gasket Sealer

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Recommended by the majority of its users, the BlueDevil Head Gasket Sealer can safely stop any leaks, big or small. What makes the product stand out among the crowd is its non-harmful additives to your vehicle’s engine. Moreover, application is easy as long as you follow the given instructions. Though it is indeed easy to use as people say, you may have to remove thermostat first before applying the product which could prove an inconvenience for some. But with a decent price of around $45, it sure beats your regular maintenance costs and time-consuming repairs.

Bar’s Leak HG-1 HEAD SEAL Blown Head Gasket Repair

Bars Leak HG-1 HEAD SEAL Blown Head Gasket Repair

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Bar’s Leak HG-1 Head Seal is one of the good quality leak sealers that are available on the market. It received an overall 72% rating from over hundreds of users online. Same as the products listed here, it is a good head gasket repair fix including the blown head or gasket leaks, cracked cylinder blocks or heads, stop leaks from radiators, and leaking core or freeze plugs. As long as you apply this gasket sealant as instructed, you should be experiencing smooth driving from then on.

Bar’s Leaks 1111 Head Gasket Fix

Bars Leaks 1111 Head Gasket Fix

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Bar’s gasket sealers are known to be quite effective and reliable, and adding to that list is the Bar’s Leaks 1111 Head Gasket Fix. It is definitely a cheap leak sealer that can effectively repair cracked cylinder heads and blocks, blown head gaskets, and any block leaks. If your vehicle overheats within 20 minutes of use, this one is highly recommended by the company and many satisfied customers. Before applying the product, make sure you’ve read all necessary instructions including a downtime of 15 minutes. Most instructions vary from one to another and may require longer downtime that could require you to wait 24 hours.

K&W FiberLock Head Gasket & Block Repair

K&W FiberLock Head Gasket & Block Repair

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K&W fiberlock is a top-rated head gasket repair solution that applies to all metal parts, painted surfaces, and most plastic-made materials. It can repair head gaskets, heater and coolant leaks, engine blocks intake gaskets, cylinder heads, and freeze plugs of any vehicle including buses, trucks and cars. Be sure to take your thermostat out and flush the system before applying the product. You should take note, however, no matter how good K&W fiberlock coolant is on repairing leaks, it may not work on major ones. You may want head on to auto-repair shops for that one.

BlueDevil Pour-N-Go

BlueDevil Pour-N-Go Head Gasket Sealer

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BlueDevil Pour-N-Go may not have the best of customer reviews in comparison on the list, but when directions for application are followed correctly, it actually works wonders. This do-it-yourself, cheap leak sealer is able to permanently repair blown, cracked or leaking head gaskets. As some of the reviews have mentioned, it had saved them hundreds, and even thousands of dollars with just a simple fix of this particular product. As always, follow directions of use to get preferred results. Not doing so may further cause damage that will render your engine to fully stop working.

Bar’s Leaks 1000 Engine Repair

Bars Leaks 1000 Engine Repair

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If you’re planning on buying an engine repair solution with the best price and made by one of the best brands known to the industry, Bar’s Leaks 1000 is one to consider. It is an affordable alternative when you are on a budget for repairing leaks on your vehicle. Not only that, it also increases oil pressure, cleans internal parts, reduces oil consumption, and reduces friction helping your engine to work effectively and efficiently. If having a leak is just one of your vehicle’s concerns, you might want to try this product out as it offers so much more than stopping and repairing leaks.

Permatex 80697 Spray-A-Gasket Adhesive Sealant

Permatex 80697 Copper Spray-A-Gasket Hi-Temp Adhesive Sealant

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Permatex 80697 is a good quality engine block sealer as confirmed by the many outstanding reviews of the product. It is a fast-drying, metallic copper spray that will reduce chances of gasket burnout and overheating by improving heat transfer. It also fills up minor surface irregularities and can resist any types of automotive fluids, gasoline most especially. Take note however that the Permatex 80697 may not work on aluminum metals or as a pre-applied sealant. It also is not advisable for use on any items that may come in contact or near your edibles.

Steel Seal Fix Repair Sealer – 8 Cylinder

Steel Seal Blown Head Gasket Fix Repair Sealer

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This gasket fix repair may not be as cheap as you’ve hoped for, but compared to the other items on this list, this is the most reliable do-it-yourself fix. It permanently seals any crack on head gaskets, cracked heads, freeze plugs, and heater cores, and only within a few minutes. That’s not the best part of this product, however; it is offering a 100% money-back lifetime guarantee. If that still doesn’t convince you, maybe a thousand users of auto-repair shops will. The Steel Seal is recommended for use on 8 cylinders, but users have mentioned working on 6 cylinders.

Hondabond High-Temp Silicone Liquid Gasket

Hondabond High-Temp Silicone Liquid Gasket

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This silicone liquid gasket by Honda, a brand well-known by the general mass, is a high-temp formula that stops leaks effectively. It also is resistant to harmful chemicals, oil, and water to prevent any deterioration. It is recommended for use on areas that do not require a solid gasket including cylinder head covers. Aside from being an excellent leak stopper, it also dries quickly, resists vibration, and is flexible. This is what makes the Hondabond high-temp silicone liquid gasket one of the high quality head gasket sealers to choose from.

Permatex 25229

Permatex 25229 The Right Stuff Gasket Maker

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Permatex is becoming a well-known brand around the industry, solely because of its reliability and affordability. Permatex 25229 is one proof of their credibility with over hundreds of positive reviews by customers, and an overall approval rating of 92%. It seals leaks instantly while eliminating the need for pre-cut, pre-formed, cork, or rubber gaskets. It also is specially designed to exceed or at least meet the standards for durability, handling, and sealing ability. The product can be used on automotive gaskets, valve covers, gearbox covers, oil pans, pumps, water pumps, and thermostat housings. If you’re looking for the best of the best to purchase, this is it.