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Bar's Leaks

Bar's Leaks Block Seal Head Gasket Fix

  • Based on 1,597 reviews
Condition: New
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Availability: In Stock.
Fulfilled by Amazon
Arrives Wednesday, Jun 18
Order within 2 hours and 45 minutes
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Size: Pack of 1


Features

  • SAFELY SEALS GASKET AND OTHER SEVERE LEAKS: One step formulation contains a combination of antifreeze compatible sodium silicate sealing liquid and various size gasket sealing particles which penetrate gaps and cracks then harden to permanently stop leaks. Heavy duty formula works on aluminum and cast iron heads & blocks, along with sealing all other engine cooling system leaks better than a traditional stop leak. This includes repairing head gaskets, cylinder heads, intake gaskets, cracked blocks and freeze plugs.
  • QUICKLY AND PERMANENTLY STOPS COOLANT LEAKS: This works because of the extreme heat inside the combustion chamber (5000F) that acts as a catalyst to permanently harden the material to make it stronger than the actual head gasket itself.
  • ONE STEP - NO DRAINING REQUIRED - EASY TO USE: Your vehicle is a good candidate for this product if it can idle for 20 minutes without overheating or having to add coolant.
  • USE WITH ALL TYPES OF TRADITIONAL OR EXTENDED LIFE COOLANT: 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.
  • Made in the USA

Description

If the words “blown head gasket” make you nervous, we’re right there with you. We know firsthand that fixing a blown head gasket requires a hefty chunk of change and a few days without your car. Who has time to spend taking their car to the shop for a blown head gasket? And who has the extra cash to pay for a blown head gasket without planning for it? No, visiting the shop for a blown head gasket fix isn’t ideal. But what if we told you it was possible to fix this yourself with one of the most reliable blown head gasket solutions on the planet? Our easy-to-use Bar’s Leaks Head Gasket Fix will not only save you all that cash, but also get you back on the road in less than an hour. At Bar’s Leaks, we specialize in creating chemical repair solutions that are fast, easy, effective and affordable. Rather than spending hundreds or thousands of dollars at the repair shop, you spend just a few dollars and all without any of the inconvenience. This product contains a combination of antifreeze- compatible sodium silicate sealing liquid and various gasket-sealing particles that penetrate gaps and cracks and harden to permanently stop leaks. It’s liquid technology for damaged, leaking or blown head gaskets, and with over two million bottles sold, you can count on it to perform. We have a team of top-flight chemical engineers who are always innovating and pursuing ways to improve our existing products. As auto manufacturers introduce new technologies, we offer new products that will help everyday drivers save time and money through fast and effective solutions. Using our head gasket repair liquid is easy. Simply follow along with Bobby and Caitlin in our how-to video to safely and quickly get your car back on the road. There’s no reason a blown head gasket should sideline your life.

Brand: Bar's Leaks


Color: Brown


UPC:


Manufacturer: Bar's Leaks


Unit Count: 1.0 Count


Brand: ‎Bar's Leaks


Color: ‎Brown


UPC: ‎046087011119


Manufacturer: ‎Bar's Leaks


Unit Count: ‎1.0 Count


Global Trade Identification Number: ‎19


Model: ‎Block Seal Head Gasket Fix, 24 Oz.


Item Weight: ‎1 pounds


Product Dimensions: ‎9.5 x 2.6 x 2.5 inches


Country of Origin: ‎USA


Item model number: ‎1111


Is Discontinued By Manufacturer: ‎No


Manufacturer Part Number: ‎1111


Date First Available: February 3, 2010


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Wednesday, Jun 18

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

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Leasing options through Acima may also be available during checkout.

Learn more about financing & leasing here.

Similar Products

Top Amazon Reviews

    • This Stuff is Magic in a Can!!!
Size: Pack of 1
This stuff is absolutely AMAZING!!! I really didn't think it would work bcz it did say for "small" leaks, (mine was NOT small) but with a $1,500 estimate to fix my 2006 Chrysler Town & country with 128k miles,(def not worth it to me) I wanted to try this product first before I broke down to buy a newer car. I was so skeptical since there were mixed reviews, but most were positive so I ordered it. First off my vans "symptoms" were massive coolant leak (over a gallon a day), over heating, oil mixing with coolant, heat only blowing out cold air. I did not have white smoke blowing out of tailpipe or milky film on oil cap or steam from radiator. The coolant leak (with oil mixed in it) and temperature reading HOT within 4-5 minutes of driving, & engine driving rough we're my biggest issues. My husband's friend is a mechanic, so I know he was being honest, did find the HG leak also.. it would have cost alot more to fix had we brought it somewhere else. The $1500 was a favor..but still too much for an older van.. anyways, so I got the product, & my radiator was empty bcz it all leaked out (but it does say u can add it with coolant already in the radiator/no need to drain out) so I poured the whole can in while engine was cool, then topped it off with antifreeze & squeezed on the hoses to get any air out. I started the van & left it running for 20 minutes with heat & fan on HIGH. I Could still see it leaking underneath but not nearly as much (wait it gets better!) So I let engine cool again & topped it off with more antifreeze, then took it for a slow 20 min ride around town with heat still on high.. it was NOT overheating! Heat was HOT again! When I got home & shut van off, I looked underneath and the leaking had completely stopped!! You don't need to do this next step, but I went ahead to get an oil change on day 12 & added one container of the"Bars leaks engine repair 2 part formula" for added protection (not sure if the stuff really works good or not but I liked the reviews & figured it could only help) I could not believe this stuff in a can did all of that so easily! This stuff is great! 5 stars from me! I saved so much money! I am now on day 16 and everything is still going great! No issues at all. I am still a little bit skeptical on how long it will work for, but I've read that some people got another 50-70,000 more miles out of their cars after using it before they had to use it again!.. so I am definitely a believer in this product! I'll see how long it lasts. If any problems arise I will be sure to come back on to post about it..but for now all is great! Van is running better than it has in a LONG time!!👍 ... show more
Reviewed in the United States on September 27, 2017 by Dee r.
    • Best product in it’s category
Size: Pack of 1
Highly recommend this brand! Works great! Easy instructions and will do its job as described if directions followed properly
Reviewed in the United States on April 7, 2025 by Sherry T.
    • Success On Second Attempt and 3 Months Later [Edit: 4 months later ( 2012-12-17)]... It's Still Working!
Size: Pack of 1
It's still working 3 months [Edit: 4 months ( 2012-12-17)] after I used it on my civic, which had a leaking head gasket. My mechanic said it would be a 1100 fix (woah!). He suggested that I use a liquid sealer instead. I did a search on Amazon for "head gasket sealer" and happened upon Bar's, and boy, am I glad I did! My first application wasn't successful. My car ran hot again after only a few days -- possibly because I attempted a 1000-mile drive to Yellowstone from Cali a few days after I used the product. Most sources I've researched say to *go easy* on your drives (don't rev it up too much) after using the product for at least a couple of weeks to allow it time to cure. So, after my second attempt, I took care to not drive my car too hard for the first two weeks or so. Also noteworthy is, on my second attempt, the coolant was almost empty when I used the product (on my first attempt, the coolant had been full). This might also be a factor in the successful use of the product the second time around. The takeaway from all this is: To give Bar's the best chance at sealing your head gasket, (1) drain your coolant before using this product (despite the instructions saying it isn't necessary). There are coolant flushing kits such as the Prestone AFKIT0 Prestone Universal Flush and Fill Kit that you can use to remove the coolant. (2) Go easy on your drives for a least a couple of weeks after using the product. There you have it. I hope this product works as well for you as it did for me. Good luck! (I will update this review periodically to report back on how Bar's is holding up.) [Update 2012-12-17] It's been 4 months after I used Bar's and that needle is holding rock steady where it should be. The coolant level, as far as I can tell, is the same as it was when I topped it off 4 months ago. I've already put 11,000 miles on it since I used "Bar's Leaks Head Gasket Fix." All signs point to this product working as a permanent fix as claimed. I'll update this review in a couple of months or when Bar's no longer works, whichever comes first. *fingers crossed* [Update 2012-12-28] Crud. My car overheated again yesterday when I was making a 250-mile drive. On this last trip, I had to rev up my engine to over 4000 rpm a good part of the trip (I usually shift gears between 2500-3000 rpm) but revving up the engine is hard to avoid when my underpowered (109 horsepower) car needs to climb some steep hills. It seems that the Bar's Leaks won't hold up on long, hard drives. I'm extremely disappointed, but still, I've had a good run with it the past 4-1/2 months. I'm going to give it another go. At 22 a pop, it's still better than shelling out over a thousand for a car that's reaching the end of its lifeline anyway. Product rating downgraded from 5-stars to 4 stars. ... show more
Reviewed in the United States on November 18, 2012 by Stack⠀Overflow

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