Top 10 Best Head Gasket Sealer [2022]

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Are you looking for the Best Head Gasket Sealer. You are in the right place. Our team went through about 37558 reviews available online for Head Gasket Sealer. We chose the finest ones, and prepared this list for you.

Comparison Chart of Top 10 Head Gasket Sealer

Best Head Gasket Sealer
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NoProductScoreAction
1K-Seal ST3501 Pour and Go Permanent Head Gasket and Block Repair9.8Buy On Amazon
2Bar's Leaks 1111 Block Seal Permanent Head Gasket Fix 24 oz9.8Buy On Amazon
3Bar's Leaks 1100 Head Gasket Repair - 20 oz9.8Buy On Amazon
4Bar's Leak HG-1 HEAD SEAL Blown Head Gasket Repair9.4Buy On Amazon
5K-Seal ST5501 Multi Purpose One Step Permanent Coolant Leak Repair9.4Buy On Amazon
6K&W 401232 Permanent Head Gasket & Block Repair with Nanotechnology - 32 Fl Oz9.4Buy On Amazon
7K-Seal ST5516 HD Multi Purpose One Step Permanent Coolant Leak Repair9.2Buy On Amazon
8BlueDevil Head Gasket Sealer (38386)9Buy On Amazon
9BlueDevil Pour-N-Go Head Gasket Sealer9Buy On Amazon
10Permatex 20539 Indian Head Gasket Shellac Compound8.6Buy On Amazon

Head Gasket Sealer Reviews

We have checked about 37558 reviews for head gasket sealer. It was quite difficult to shortlist the ideal ones from thousands of variants online. However, we've tried our best to make sure that you get only the best one from our suggestions.

Table Of Content:

1. K-Seal ST3501 Pour and Go Permanent Head Gasket and Block Repair

  • Just Pour & Go – No Need for Expensive Head Gasket Repairs – The Safe and Easy Way to Fix a Coolant Leak.
  • Fixes blown head gaskets, cracked heads and blocks
  • A permanent repair, guaranteed for the lifetime of the engine
  • Scientifically Tested – K-Seal is the only product to have been successfully tested by the equipment at Brighton University and classes as meeting the demands of ASTM D3147.
  • If product did not seal head gasket leak, the system might be Over-pressurized, which causes back pressure and doesn’t allow the product to reach the problem area, on this page below under Technical Specification is a PDF Guide with instructions to follow to complete the repair successfully.

2. Bar’s Leaks 1111 Block Seal Permanent Head Gasket Fix 24 oz

  • Stops block leaks
  • Seals cracked cylinder heads and blocks
  • Repairs blown head gaskets
  • Contains a combination of antifreeze compatible sodium silicate sealing liquid and various size gasket sealing particles which penetrate gaps & cracks and harden to permanently stop leaks.

3. Bar’s Leaks 1100 Head Gasket Repair – 20 oz

  • Stops block leaks
  • Seals cracked cylinder heads and blocks
  • Repairs blown head gaskets
  • Dual Action 2 Part Formula — LIQUID CERAMIC: Liquid penetrates large and small leaks to form a seal actually harder than the original head gasket — REINFORCED FIBERS: Fiber additives lock together with liquid to increase strength and promote a permanent seal.
  • 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.
  • Included components: Unit, Instruction Guide

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

  • Repairs blown head and intake gasket leaks
  • Seals cracked cylinder heads and blocks
  • Stops heater core and radiator leaks
  • Fixes leaking freeze and core plugs

5. K-Seal ST5501 Multi Purpose One Step Permanent Coolant Leak Repair

  • Permanent coolant leak repair – Just shake, pour and go
  • Mixes with all antifreeze
  • No draining or flushing
  • Fixes cracks and leaks in radiator, head gasket, freeze plugs, cylinder heads, heater core, water pump casing and engine blocks.
  • If product did not seal head gasket leak, the system might be Over-pressurized, which causes back pressure and doesn’t allow the product to reach the problem area, on this page below under Technical Specification is a PDF Guide with instructions to follow to complete the repair successfully.

6. K&W 401232 Permanent Head Gasket & Block Repair with Nanotechnology – 32 Fl Oz

  • Package length: 4.394 cm
  • Package width: 8.610 cm
  • Package height: 24.206 cm
  • Product Type: AUTO ACCESSORY

7. K-Seal ST5516 HD Multi Purpose One Step Permanent Coolant Leak Repair

  • Permanent coolant leak repair – Just shake, pour and go
  • Mixes with all antifreeze
  • No draining or flushing
  • Fixes cracks and leaks in radiator, head gasket, freeze plugs, cylinder heads, heater core, water pump casing and engine blocks.
  • If product did not seal head gasket leak, the system might be Over-pressurized, which causes back pressure and doesn’t allow the product to reach the problem area, on this page below under Technical Specification is a PDF Guide with instructions to follow to complete the repair successfully.

8. BlueDevil Head Gasket Sealer (38386)

  • 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
  • Alternative solution for costly and time consuming repairs
  • Safe and easy to use
  • Permanent Repair

9. BlueDevil Pour-N-Go Head Gasket Sealer

  • Do-It-Yourself Formula
  • Easy to Use Pour-n-go
  • Used for 4 cylinder and v-6 engines
  • Permanently Seals Blown, Cracked or Leaking Head Gaskets

10. Permatex 20539 Indian Head Gasket Shellac Compound

  • Hard setting, economical sealant
  • Formulated to lubricate under the most adverse brake conditions
  • Seals all common gasketing materials
  • Resists diesel fuels and most auto shop fluids
  • Designed for temperature range -65 F to 350 F
  • Flash Point: 24.44

Head Gasket Sealer Buying Guide


Does the thought of finding a great Head Gasket Sealer stress you out? Has your mind been juggling between choices when it comes to buying Head Gasket Sealer in general, specifically regarding which model to choose?
If that’s the case, know that you’re not alone. Many people find it tough to buy the perfect Head Gasket Sealer for themselves. We understand the stress associated with the buying process!
Since you’re here, you are obviously curious about Head Gasket Sealer Reviews. You’ve been bombarded with information, so you need to find a reputable source with credible options before you make any decisions on which product would be best for your needs.
There are many sources that’ll provide you with that information- buying guides or ratings websites, word-of-mouth testimonials from friends or family members, online forums where users share their personal experiences, product reviews specifically found all over the internet and YouTube channels. Only thorough research will ensure that you get the right product.
But that’s not always easy, right? That's why we've taken time to compile a list of the best Head Gasket Sealer in today's market, on your behalf, so that there will be no more worries for you.
How did we come up with the list, you ask? How did we create this buying guide?
  • First, our algorithms collected as much information available about these products from trusted sources.
  • We employed both Artificial Intelligence and large data volume to validate all collected information.
  • Then our AI ranked them on their quality-to-price ratio using industry-standard criteria that let us pick the best Head Gasket Sealer currently on the market!
The products aren’t chosen randomly. We consider several criteria before assembling a list. Some of the criteria are discussed below-
  1. Brand Value: What happens when you go for a not-so-reputable brand just because the price seems cheap? Well, the chance of getting a short-lasting product goes higher. That’s because the renowned brands have a reputation to maintain, others don’t.
Top Head Gasket Sealer brands try to offer some unique features that make them stand out in the crowd. Thus hopefully, you’ll find one ideal product or another in our list.
  1. Features: You don’t need heaps of features, but useful ones. We look at the features that matter and choose the top Head Gasket Sealer based on that.
  2. Specifications: Numbers always help you measure the quality of a product in a quantitative way. We try to find products of higher specifications, but with the right balance.
  3. Customer Ratings: The hundreds of customers using the Head Gasket Sealer before you won’t say wrong, would they? Better ratings mean better service experienced by a good number of people.
  4. Customer Reviews: Like ratings, customer reviews give you actual and trustworthy information, coming from real-world consumers about the Head Gasket Sealer they used.
  5. Seller Rank: Now, this is interesting! You don’t just need a good Head Gasket Sealer, you need a product that is trendy and growing in sales. It serves two objectives. Firstly, the growing number of users indicates the product is good. Secondly, the manufacturers will hopefully provide better quality and after-sales service because of that growing number.
  6. Value For The Money: They say you get what you pay for. Cheap isn’t always good. But that doesn’t mean splashing tons of money on a flashy but underserving product is good either. We try to measure how much value for the money you can get from your Head Gasket Sealer before putting them on the list.
  7. Durability: Durability and reliability go hand to hand. A robust and durable Head Gasket Sealer will serve you for months and years to come.
  8. Availability: Products come and go, new products take the place of the old ones. Probably some new features were added, some necessary modifications were done. What’s the point of using a supposedly good Head Gasket Sealer if that’s no longer continued by the manufacturer? We try to feature products that are up-to-date and sold by at least one reliable seller, if not several.
  9. Negative Ratings: Yes, we take that into consideration too! When we pick the top rated Head Gasket Sealer on the market, the products that got mostly negative ratings get filtered and discarded.

These are the criteria we have chosen our Head Gasket Sealer on. Does our process stop there? Heck, no! The most important thing that you should know about us is, we're always updating our website to provide timely and relevant information.
Since reader satisfaction is our utmost priority, we have a final layer of filtration. And that is you, the reader! If you find any Head Gasket Sealer featured here Incorrect, irrelevant, not up to the mark, or simply outdated, please let us know. Your feedback is always welcome and we’ll try to promptly correct our list as per your reasonable suggestion.