FiberLock Head Gasket and Block Repair
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K & W Chemical FiberLock Head Gasket and Block Repair

Part No. 401224-6 Warranty  
Permanent pour 'n go head gasket & block repair compatible with all types of antifreeze. Repairs cooling system leaks w/3 unique technologies: military-strength fibers nanotechnology & Cool-X™ Conditioner-the ultimate solution for all coolant leaks.
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Container Material:Plastic
Container Size:32 oz
Liquid Type:Beige Fibrous Liquid

REVIEW SNAPSHOT®

by PowerReviews
K & W ChemicalFiberLock Head Gasket and Block Repair
 
3.4

(based on 5 reviews)

Ratings Distribution

  • 5 Stars

     

    (3)

  • 4 Stars

     

    (0)

  • 3 Stars

     

    (0)

  • 2 Stars

     

    (0)

  • 1 Stars

     

    (2)

60%

of respondents would recommend this to a friend.

Pros

  • Easy to use (3)

Cons

    Best Uses

        • Reviewer Profile:
        • Casual driver (4)

      Reviewed by 5 customers

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      Displaying reviews 1-5

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      (1 of 1 customers found this review helpful)

       
      5.0

      It Works

      By Doc

      from West Columbia, SC

      About Me Casual Driver

      Verified Buyer
      Level 1

      Pros

      • Easy To Use

      Cons

        Best Uses

        • Upkeep

        Comments about K & W Chemical FiberLock Head Gasket and Block Repair:

        Very good product.

        Comment on this review(earn points)

        (0 of 1 customers found this review helpful)

         
        1.0

        DOUBLE YOUR MONEY BACK LIMITED TO $43.00

        By Clyde

        from Port Saint John, FL

        About Me Casual Driver

        Pros

          Cons

            Best Uses

              Comments about K & W Chemical FiberLock Head Gasket and Block Repair:

              I tried it and it does not work as claimed. Then when I went to get the double your money back rebate. It was limited to $43.00...well I paid $35.99 for it so you can do the math where that doesn't add up. Use at your own risk!! Your better with a less expensive product.

              Comment on this review(earn points)

              (3 of 3 customers found this review helpful)

               
              5.0

              So far so good

              By Steve

              from Missouri

              About Me Casual Driver

              Pros

              • Easy To Use

              Cons

                Best Uses

                • Automotive Repair Shop
                • Roadside Repairs

                Comments about K & W Chemical FiberLock Head Gasket and Block Repair:

                Had a coolant leak that I couldn't find after removing and checking all hoses. Wasn't the heater core either. Had to be a gasket. Unlike other products I was looking at, this one didn't require me to flush the system...bet. No cap directly on the radiator so we had to loosen the hose and pour it in that way. Let the car idle for a 20 minutes then took it for a ride. No leaks so far. If nothing else this is a great quick temporary fix but I'm hoping it's permanent like the manufacturer boasts. If I could suggest anything it would be that they sell it in a small bottle too as I didn't even use half. Thanks!

                Comment on this review(earn points)

                (4 of 9 customers found this review helpful)

                 
                1.0

                clogged heater core,blew radiator hose

                By foster hunter

                from Collierville,TN

                About Me Casual Driver

                Verified Buyer
                Helpful Reviewer

                Pros

                  Cons

                    Best Uses

                      Comments about K & W Chemical FiberLock Head Gasket and Block Repair:

                      clogged heater core,blew upper radiator hose after driving couple miles. Caused more damage to the cooling system. Car still overheats.

                      Comment on this review(earn points)

                      (12 of 20 customers found this review helpful)

                       
                      5.0

                      Definitely recommend this product.

                      By Washaman

                      from Union, Ky

                      About Me Auto Enthusiast, Mechanic

                      Level 2

                      Pros

                      • Easy To Use
                      • Reliable

                      Cons

                        Best Uses

                        • Automotive Repair Shop
                        • Home Garage
                        • Roadside Repairs

                        Comments about K & W Chemical FiberLock Head Gasket and Block Repair:

                        This stuff in the green jug works great! Sealed the head gasket within 20 minutes.

                        Comment on this review(earn points)

                        Displaying reviews 1-5

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                        Do you have questions about this product?(earn points for answers!)

                         

                        Ask a question, get answers from real customers and in-house experts. Or contact Customer Care by email or call 1-877-238-2623.

                        7 Questions | 10 Answers
                        Displaying questions 1-7
                        • Q:

                          I have a coolant leak in my Oldsmobile 1996 Cutlass Supreme. It looks like it is coming from the water pump. Will this product work in this situation?
                          Asked on 6/10/2014 by Drewbydoo

                          3 answers

                          • CUSTOMER CARE

                            A:

                            I'm happy to help, Drewbydoo! While it is possible this will fix the leak on your 1996 Oldsmobile Cutlass Supreme coming from your water pump. This product is compatible with all anti-freeze. A replacement water pump may provide a more permanent solution. There are a few water pumps available for your vehicle and some are less than this product. To find the correct water pump, make sure to enter the correct engine size for your vehicle.

                            Answered on 6/11/2014 by Heath, ASE Parts Specialist from AAP
                          • CUSTOMER CARE

                            A:

                            Hi Drewbydoo, glad to help you! This product repairs head gaskets, engine blocks intake gaskets, cylinder heads, freeze plugs, heater cores and coolant leaks on cars, trucks, and buses. The nanotechnology reinforced with military-strength fibers for a superior permanent repair. It is compatible with all anti-freeze.

                            Answered on 6/11/2014 by Steve from AAP
                          • CUSTOMER CARE

                            A:

                            Hi Drewbydoo, glad to help you! This product repairs head gaskets, engine blocks intake gaskets, cylinder heads, freeze plugs, heater cores and coolant leaks on cars, trucks, and buses. The nanotechnology reinforced with military-strength fibers for a superior permanent repair. It is compatible with all anti-freeze.

                            Answered on 6/11/2014 by Steve from AAP
                        • Q:

                          Is this ok to use with thermostat or do I need to take it out first, couldn't find answer on bottle of this product but other products said to remove so wasn't sure, also does it need to be flushed out after so long or do I keep it in until next routine radiator flush?
                          Asked on 6/4/2014 by jcobble

                          1 answer

                          • CUSTOMER CARE

                            A:

                            Good question, Jcobble! It is not required to remove the thermostat. You can remove it if you like.

                            Answered on 6/5/2014 by Vincent from AAP
                        • Q:

                          Will this work on a compression leak to radiator only one way will not go back in head no leaks only pressure into radiator
                          Asked on 4/18/2014 by jeff from denver co

                          1 answer

                          • CUSTOMER CARE

                            A:

                            Hi Jeff, glad to assist you! This part repairs head gaskets, engine blocks intake gaskets, cylinder heads, freeze plugs, heater cores and coolant leaks on cars, trucks, and buses. Repairs cooling system leaks with 3 unique technologies: military-strength fibers nanotechnology & cool-x conditioner-the ultimate solution for all coolant leaks.

                            Answered on 4/19/2014 by Steve from AAP
                        • Q:

                          i bought one green bottle of fiberlock head gasket to fix my suparu 99 engine overheat , i did as my mechanic advise for using to repair the head gasket but unfortunately it didn't work , so i'm asking how can i refund my money back ( double money back guarantee)
                          Asked on 3/25/2014 by essay

                          1 answer

                          • CUSTOMER CARE

                            A:

                            Hi Essay, happy to help! If you are not completely satisfied with your purchase, return it to any Advance Auto Parts store or to our returns center within 90 days from the date of your purchase. All refunds will be credited back to you via the same payment method used for your original order. Shipping and handling charges are not refundable except in the case of returns due to our error. For more information regarding the returns please visit this link. http://shop.advanceautoparts.com/o/returns

                            Answered on 3/26/2014 by Steve from AAP
                        • Q:

                          I have a 2002 chevy ventura that is over heating bubble in radiator when running will this fix my problem
                          Asked on 3/21/2014 by mike from florida

                          1 answer

                          • CUSTOMER CARE

                            A:

                            Hi Mike! This K & W Chemical FiberLock Head Gasket and Block Repair may help but I would always recommend fixing the problem by finding out exactly the cause of over heating and then replacing the necessary parts.

                            Answered on 3/24/2014 by Vincent from AAP
                        • Q:

                          My Mechanic stated that exhaust was getting into the cooling system and that trying this head gasket seal would probably not correct issue. Has anyone had the same symptom and it did seal successfully?
                          Asked on 1/22/2014 by Dave from Lock Haven, PA

                          1 answer

                          • CUSTOMER CARE

                            A:

                            Hi Dave! Good question! I need a bit more information on how your mechanic came to the conclusion that exhaust was getting into the cooling system. Did he perform a compression test? If you see white or black smoke or milky oil color, it could be a cracked head. If this is the case, the head gasket block repair will not work and you may need to replace the head.

                            Answered on 1/23/2014 by John the Car-Doc from AAP
                        • Q:

                          I have a fast oil leak. What can I use to stop the oil leak for a while? Is it any kind of sealant for oil leaks?
                          Asked on 10/31/2012 by Zo from thomasville, ga

                          2 answers

                          • A:

                            this isn't the product unless the oil looks like a milkshake.

                            Fast oil leak:
                            Blue exhaust--- cracked/warn rings, valve guide seals, cracked block, automatic trans vacuum sensor (check trans fluid)
                            No smoke, oil spots on cement--- seal treatment-- swells seals up to seal

                            Answered on 3/23/2014 by 4starz from Columbus Oh
                          • CUSTOMER CARE

                            A:

                            If you are referring to to stop engine oil leak, then please refer this Bars Leak Engine Stop Leak (Part No. 1010) which would fix you problem. This engine stop leak is specially designed to seal leaks caused by normal engine wear and age. Helps stop leaks due to drying, hardening or shrinking of engine oil seals and gaskets. Mixes with all factory approved engine oils including synthetics. Contains no particles that will clog oil passages or filters. Non-corrosive, non-clogging and non-foaming. Bar's Leaks Stop Leak helps your engine last longer. Most leaks stop in 250 miles or 3 days of driving. One bottle treats 4 (four) to 6 (six) quarts of oil. To prevent future leaks, install stop leak every 6,000 miles. For further assistance, please feel free to call us at 1-877-238-2623 or visit your nearest Advance Auto Parts store and one of our representatives would be more than happy to assist you.

                            Answered on 11/1/2012 by Steve from AAP
                        Displaying questions 1-7

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                        Disclaimer We strive to keep all information accurate and up-to-date; however, product availability, pricing, promotions and store hours are subject to change without notice. Please contact Customer Care if you have any questions or corrections.