K-Seal

Kseal Heavy Duty Permanent Coolant Leak Sealer

$17.45
(4.23) 4.23 stars out of 13 reviews 13 reviews
$17.45
$17.45
Free overnigh delivery
FSA and HSA eligible
Kseal Heavy Duty Permanent Coolant Leak Sealer

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Customer reviews & ratings

4.23 out of 5stars
(13 reviews)
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Most helpful positive review

5.00 out of 5 stars review
Verified Purchaser
10/07/2020
best product besides blue devil for head gasket leaks
dovecreekron

Most helpful negative review

1.00 out of 5 stars review
Verified Purchaser
03/19/2023
no luck, didnt work for me
did not work on sealing my heater core
mike
  • 5.00 out of 5 stars review
    Verified Purchaser
    04/09/2023
    Leak sealer
    Works well. Reasonably priced.
    Jan
  • 1.00 out of 5 stars review
    Verified Purchaser
    03/19/2023
    no luck, didnt work for me
    did not work on sealing my heater core
    mike
  • 5.00 out of 5 stars review
    Verified Purchaser
    02/28/2023
    mechanic in a bottle
    this is cheaper than the mechanic
    Chasity
  • 5.00 out of 5 stars review
    Verified Purchaser
    01/14/2023
    Time will tell
    I think it sealed the tiny leak in radiator. Time will tell.
    Maximus
  • 3.00 out of 5 stars review
    Verified Purchaser
    12/11/2022
    It worked for 2 weeks
    My mechanic tells me my 2006 Honda Civic had a crack on block engine. I put a can of this product and now not only does it not overheat it has stoped loosing coolant been driving it daily for overc2 weeks now with no problems. I have no idea how long it will work but I’m happy to avoid a $2,000 repair for 20 bucks.
    Toto
  • 5.00 out of 5 stars review
    Verified Purchaser
    11/17/2022
    melissa
  • 5.00 out of 5 stars review
    Verified Purchaser
    07/14/2021
    Truly amazing.
    This works great for my small leak.
    d1959
  • 5.00 out of 5 stars review
    Verified Purchaser
    10/07/2020
    best product besides blue devil for head gasket leaks
    Unknown
  • 5.00 out of 5 stars review
    Verified Purchaser
    10/07/2020
    best product besides blue devil for head gasket leaks
    dovecreekron
  • 5.00 out of 5 stars review
    Verified Purchaser
    09/26/2020
    Wonderful Radiator Sealer
    This is very good sealer. Last February My contractor ordered a New Diesel Generator($3376.00) to England. But the Factory could not send because of the COVID 19. So I applied this item and worked out to stop LEAKING.
    HYUNGJO
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