1. Bar's Leaks
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Bar's Leaks 1186 Liquid Aluminum Stop Leak, 16.9 oz
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More information #ad
Seals freeze plug leaks. Lowers water temperature. Repairs gasket leaks and heater core leaks.| Brand | Bar's Leaks #ad |
| Manufacturer | Bar's Leaks #ad |
| Height | 7.4 Inches |
| Length | 2.6 Inches |
| Weight | 1.2 Pounds |
| Width | 2.6 Inches |
| Part Number | 1186 |
| Model | 1186 |
| Warranty | 1 year manufacturer |
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2. K-Seal
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Trade Trusted-Stop Leak, ST5501 8oz, Water Pump Casing, Block, K-SEAL Coolant Leak Repair, Multi-Purpose Formula Stops Leaks in the Radiator, Heater Core, Head Gasket, and Freeze Plug, Pour and Go
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Customer support: if k-seal engine coolant leak stop doesn’t seal, the system might be over-pressurized.
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Us bestseller. The only car radiator and gasket sealant university tested to meet ASTM D3147. Pour and go: our cooling system sealer is easy to use: just shake the bottle, it mixes with all types of antifreeze, add to your radiator/overflow and run the engine! Unlike some traditional products, absolutely no draining or flushing required. Scientifically tested: safe and effective, the repair withstands the high pressure of the combustion chamber, our cracked block repair can seal leaks up to 1/32 of an inch! Once cured, all without failing or clogging the cooling system. Repairs in minutes: formulated to permanently weld radiators, including hard plastic aluminum heads and blocks in old and new cars.
| Brand | K-Seal #ad |
| Manufacturer | K-Seal #ad |
| Height | 6 Inches |
| Length | 7.87 Inches |
| Weight | 0.6 Pounds |
| Width | 2 Inches |
| Part Number | ST5501 |
| Model | ST5501 |
| Warranty | When K-Seal makes a repair we guarantee it will be permanent |
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3. Bar's Leaks
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11 oz., Bar's Leaks PLT11 Pelletized HD Radiator Stop Leak
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| Brand | Bar's Leaks #ad |
| Manufacturer | Bar's Leaks #ad |
| Height | 6 Inches |
| Length | 3 Inches |
| Weight | 0.85 Pounds |
| Width | 3 Inches |
| Part Number | PLT11 |
| Model | PLT11 |
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4. Bar's Leaks
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60 Grams, Bar's Leaks HDC Radiator Stop Leak Tablet
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| Brand | Bar's Leaks #ad |
| Manufacturer | Bar's Leaks #ad |
| Height | 0.8 Inches |
| Length | 7.5 Inches |
| Weight | 0.2 Pounds |
| Width | 5 Inches |
| Part Number | HDC |
| Model | HDC |
| Warranty | Manufacturer Warranty |
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5. Bar's Leaks
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Bar's Leaks 1196 Radiator Stop Leak, 11 oz.
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| Brand | Bar's Leaks #ad |
| Manufacturer | Bar's Leaks #ad |
| Height | 5 Inches |
| Length | 1.6 Inches |
| Weight | 0.5 Pounds |
| Width | 2.4 Inches |
| Part Number | 1196 |
| Model | 1196 |
| Warranty | No |
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6. Bar's Leaks
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Bar's Leaks 1109 Block Seal Liquid Copper Intake and Radiator Stop Leak, 18 oz.
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| Brand | Bar's Leaks #ad |
| Manufacturer | Bar's Leaks #ad |
| Height | 2.6 Inches |
| Length | 7.5 Inches |
| Weight | 1.3 Pounds |
| Width | 2.6 Inches |
| Part Number | 1109 |
| Model | 1109 |
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7. Bar's Leaks
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Bar's Leaks 1194 Radiator Stop Leak Concentrate, 6 oz.
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| Brand | Bar's Leaks #ad |
| Manufacturer | Bar's Leaks #ad |
| Height | 6.5 Inches |
| Length | 1.8 Inches |
| Weight | 0 Pounds |
| Width | 3 Inches |
| Part Number | 1194 |
| Model | 1194 |
| Warranty | No |
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8. J-B Weld
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J-B Weld DS-114 PERM-O-Seal Radiator Stop Leak, 0.7 oz.
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Our heavy duty adhesives repair & restore it right the first time. Money saving repair solution: The powered concentrate allows for an economical repair as compared to liquid based alternatives that use similar technology.
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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. Do it yourself: big or small, you can diy it with j-b. 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. Jb weld delivers the legendary performance of the World's Strongest Bond.
| Brand | J-B Weld #ad |
| Manufacturer | J-B WELD #ad |
| Height | 0 Inches |
| Length | 0 Inches |
| Weight | 0.1 Pounds |
| Width | 0 Inches |
| Part Number | DS114 |
| Model | DS-114 |
| Warranty | 1 year manufacturer |
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9. Prestone
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11 oz., Prestone AS145 Radiator Sealer Stop Leak
#adPrestone #ad - Seals even large leaks without interfering with the flow through the radiator or heater core. Combination of natural and synthetic components provides the ability to seal leaks up to 0020" x 05".More information #ad
Boosts corrosion inhibitors to protect against pitting and corrosion, which cause radiator leaks. Stops the leak as well as the corrosive condition that causes it. Patented formula quickly stops leaks in radiators, water pumps, and heater cores.| Brand | Prestone #ad |
| Manufacturer | Prestone #ad |
| Height | 5.64 Inches |
| Length | 1.91 Inches |
| Weight | 0.82 Pounds |
| Width | 3.04 Inches |
| Part Number | AS145 |
| Model | AS145 |
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10. ATP Automotive
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ATP AT-205 Re-Seal Stops Leaks, 8 Ounce Bottle
#adATP Automotive #ad - Rejuivinates all rubber seals & gaskets in engines, power steering, transmissions, differentials and hydraulic systems. Does not contain petroleum distillates, will not over-swell or breakdown seals.More information #ad
Compatible with conventional and synthetic oils, gear oil, ATF, power steering fluids and hydraulic oil. 8oz bottle will treat a 6 quart capacity, adjust accordingly. Professional strength fast acting resealer, stops leaks fast.| Brand | ATP Automotive #ad |
| Manufacturer | ATP #ad |
| Height | 4 Inches |
| Length | 7 Inches |
| Weight | 0.11 Pounds |
| Width | 4.5 Inches |
| Part Number | AT-205 |
| Model | AT-205 |
| Warranty | Money Back Guarantee |
More information #ad