BEST RADIATOR STOP LEAKS

Choosing the best RADIATOR STOP LEAKS may be challenging as you have to screen through a large amount of similar products available on the market. Don’t worry though; we have got our hands on 10 trendy and top-rated products and below is our recommendation.

10 BEST RADIATOR STOP LEAKS

IMAGE PRODUCT RATING PRICE
1. K-SEAL Coolant Leak Repair, ST5501 8oz, Multi-Purpose Formula Stops Leaks in...
2. J-B Weld DS-114 PERM-O-Seal Radiator Stop Leak - 0.7 oz.
3. Bar's Leaks 1186 Liquid Aluminum Stop Leak - 16.9 oz
4. Bar's Leaks PLT11 Pelletized HD Radiator Stop Leak - 11 oz.
5. Bar's Leaks 1194 Radiator Stop Leak Concentrate - 6 oz.
6. Bar's Leaks HDC Radiator Stop Leak Tablet - 60 Grams
7. Bar's Leaks 1109 Block Seal Liquid Copper Intake and Radiator Stop Leak - 18 oz.
8. Bar's Leaks C16 Liquid Radiator Stop Leak - 11 oz.
9. AlumAseal ASLC16 Radiator Stop Leak and Conditioner Liquid - 16 Fl oz.
10. Bar's Leaks 1196 Radiator Stop Leak - 11 oz.

Best RADIATOR STOP LEAKS

K-SEAL Coolant Leak Repair, ST5501 8oz, Multi-Purpose Formula Stops Leaks in the Radiator, Head Gasket, Block, Water Pump Casing, Heater Core, and Freeze Plug - Pour and Go - Trade Trusted-Stop Leak

 in stock
18 new from $11.95
Free shipping
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as of January 1, 2021 2:35 am

Features

  • REPAIRS IN MINUTES: Formulated to permanently weld radiators, including hard plastic aluminum heads and blocks in old and new cars. The only car radiator and gasket sealant university tested to meet ASTM D3147. Save time/money. US Bestseller
  • SEALS CRACKS AND STOPS LEAKS: A DIY alternative to costly repairs, our coolant leak fix permanently seals cracks and holes! It quickly repairs your leaking radiator, freeze plug, heater core and water pump casing with no adverse impact on efficiency.
  • POUR AND GO: Our cooling system sealer is easy to use: just shake the bottle, add to your radiator/overflow and run the engine! Unlike some traditional products, it mixes with all types of antifreeze, absolutely no draining or flushing required.
  • SCIENTIFICALLY TESTED: Safe and effective, our cracked block repair can seal leaks up to 1/32 of an inch! Once cured, the repair withstands the high pressure of the combustion chamber, all without failing or clogging the cooling system.
  • CUSTOMER SUPPORT: If K-Seal engine coolant leak stop doesn’t seal, the system might be over-pressurized. Check the Technical Specification section of this page for extra instructions for a successful repair. Over 8 million bottles sold worldwide!

J-B Weld DS-114 PERM-O-Seal Radiator Stop Leak - 0.7 oz.

 in stock
9 new from $6.36
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as of January 1, 2021 2:35 am

Features

  • JB WELD PERM O SEAL : Is a specially formulated non-toxic compound ground to a very fine particle size to quickly mix and flow into all areas of the cooling system to find and seal leaks.
  • WHAT THE PROS USE: Mechanics, repair pros, and any avid DIYer knows our products bond strong to a variety of surfaces in even the toughest environments; and they have always been made in the USA.
  • MONEY SAVING REPAIR SOLUTION: The powered concentrate allows for an economical repair as compared to liquid based alternatives that use similar technology.
  • DURABLE FAST FIX: The special compound will quickly seal leaks and will also act as a rust inhibitor and lubricant to internal cooling system parts. It will not clog or harm your cooling system.
  • DO IT YOURSELF: Big or small, you can DIY it with J-B. Our heavy duty adhesives repair & restore it right the first time. JB Weld delivers the legendary performance of the World's Strongest Bond.

Bar's Leaks 1186 Liquid Aluminum Stop Leak - 16.9 oz

 in stock
19 new from $6.29
1 used from $5.58
Free shipping
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as of January 1, 2021 2:35 am

Features

  • Bar's Leaks Liquid Aluminum Stop Leak seals radiator leaks. Seals freeze plug leaks. Repairs gasket leaks and heater core leaks. Lowers water temperature.
  • Seals radiator leaks
  • Seals freeze plug leaks
  • Repairs gasket leaks
  • Special Shipping Information: This item cannot be returned and has additional shipping restrictions

Bar's Leaks PLT11 Pelletized HD Radiator Stop Leak - 11 oz.

 in stock
7 new from $3.91
Free shipping
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as of January 1, 2021 2:35 am

Features

  • Seals leaks
  • Conditions cooling system
  • Inhibits rust and corrosion
  • Lubricates water pump seals
  • Helps control electrolysis

Bar's Leaks 1194 Radiator Stop Leak Concentrate - 6 oz.

 in stock
12 new from $1.29
Free shipping
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as of January 1, 2021 2:35 am

Features

  • Product type :AUTO ACCESSORY
  • Package dimensions :4.064 cm L x6.096 cm W x12.446 cm H
  • country of origin :United States
  • package weight :0.81lbs

Bar's Leaks HDC Radiator Stop Leak Tablet - 60 Grams

 in stock
8 new from $2.25
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as of January 1, 2021 2:35 am

Features

  • Seals leaks
  • Conditions cooling system
  • Inhibits rust and corrosion
  • Lubricates water pump seals
  • Helps control electrolysis

Bar's Leaks 1109 Block Seal Liquid Copper Intake and Radiator Stop Leak - 18 oz.

 in stock
13 new from $7.55
Free shipping
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as of January 1, 2021 2:35 am

Features

  • Seals larger leaks seals
  • Repairs heater core leaks
  • Repairs freeze plug leaks
  • Repairs blown head gaskets
  • Repairs blocks

Bar's Leaks C16 Liquid Radiator Stop Leak - 11 oz.

 in stock
4 new from $4.29
Free shipping
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Amazon.com
as of January 1, 2021 2:35 am

Features

  • Seals leaks
  • Conditions cooling system
  • Inhibits rust and corrosion
  • Lubricates water pump seals
  • Helps control electrolysis

AlumAseal ASLC16 Radiator Stop Leak and Conditioner Liquid - 16 Fl oz.

 in stock
10 new from $9.99
Free shipping
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Amazon.com
as of January 1, 2021 2:35 am

Features

  • Stops leaks safely, quickly and easily
  • Compatible with all antifreeze and coolants
  • Safe and effective for all metal, plastic and rubber cooling system parts
  • Lubricates water pump
  • Guaranteed to work

Bar's Leaks 1196 Radiator Stop Leak - 11 oz.

 in stock
17 new from $2.93
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Amazon.com
as of January 1, 2021 2:35 am

Features

  • Auto & Truck Maintenance
  • Country of manufacture: United States
  • Manufacturer: BAR'S LEAKS
  • Works with all types and colors of anti-freeze coolant
  • Stops and seals coolant leaks