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. 2 Row Core Aluminum Racing Radiator Stop Leak Compatible For FORD F250 F350...
3. Replacement For Ford Mustang GT/SVT V8 4.6L 1997 1998 1999 2000 2001 2002...
4. 2 Row 42MM Aluminum Cooling Racing Radiator Stop Leak Compatible For HONDA...
5. Bar's Leaks 1186 Liquid Aluminum Stop Leak - 16.9 oz
6. Bar's Leaks PLT11 Pelletized HD Radiator Stop Leak - 11 oz.
7. Bar's Leaks 1109 Block Seal Liquid Copper Intake and Radiator Stop Leak - 18 oz.
8. Bar's Leaks HDC Radiator Stop Leak Tablet - 60 Grams
9. Bar's Leaks 1196 Radiator Stop Leak - 11 oz.
10. Liqui Moly 20132 Radiator Stop Leak, 0.25 l, 1 Pack

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
15 new from $12.47
Free shipping
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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!

2 Row Core Aluminum Racing Radiator Stop Leak Compatible For FORD F250 F350 F450 6.0L Powerstroke 2003 2004 2005 2006 2007 AT/MT

 in stock
6 new from $159.97
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Features

  • Compatible For FORD F250 F350 F450 6.0L Powerstroke 2003 2004 2005 2006 2007 AT/MT
  • High Performance, 30% Extra Flow.
  • Made of high quality full T-6061 aluminum construction
  • Stronger and higher capacity for coolant than stock units
  • Vehicle Tested. Perfect Fit. 1 Year Manufacturer Warranty

Replacement For Ford Mustang GT/SVT V8 4.6L 1997 1998 1999 2000 2001 2002 2003 2004 Engine Aluminum Performance Cooling Radiator Stop Leak

 in stock
1 new from $133.42
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Features

  • Inlet/Outlet Size: 38mm/45mm
  • This radiator is heavy duty designed, cooling capacity is increased about 40% than standard radiator ,really well packed,exceeds OEM spec.
  • Made of high quality full T-6061 aluminum construction
  • The core of the radiator is welded in vacuum brazing furnace, no epoxy. The tanks are 100% welded by TIG.
  • Improves cooling by 35% to 45% temperature

2 Row 42MM Aluminum Cooling Racing Radiator Stop Leak Compatible For HONDA CIVIC D15 D16 EG EK SOHC 1992 1993 1994 1995 1996 1997 1998 1999 2000

 in stock
1 new from $61.72
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Features

  • Compatible For HONDA CIVIC D15 D16 EG EK SOHC 1992 1993 1994 1995 1996 1997 1998 1999 2000
  • Inlet/Outlet size: 28mm/28mm
  • Improves cooling by 35% to 45% temperature
  • Made of high quality full T-6061 aluminum construction
  • Stronger and higher capacity for coolant than stock units

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

 in stock
14 new from $6.29
Free shipping
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as of October 29, 2020 9:37 pm

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 $5.62
Free shipping
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as of October 29, 2020 9:37 pm

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
9 new from $7.97
Free shipping
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as of October 29, 2020 9:37 pm

Features

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

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

 in stock
6 new from $2.25
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as of October 29, 2020 9:37 pm

Features

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

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

 in stock
14 new from $3.22
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as of October 29, 2020 9:37 pm

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

Liqui Moly 20132 Radiator Stop Leak, 0.25 l, 1 Pack

 in stock
11 new from $9.42
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as of October 29, 2020 9:37 pm

Features

  • LIQUI MOLY Radiator Stop-Leak completely seals such leaks immediately with ease. 
  • Secures the combustion chamber from damages caused by coolant admission
  • For all cooling water and heating systems with and without water filters