Best Radiator Repair in 2022 (Top 15 & Buying Guide)

Sometimes it might be quite difficult to find the best radiator repair. With every niche market offering so many different products, it makes sense that this is the case.

Unfortunately, this very fact can make it incredibly difficult to find the item that best suits your needs, which is why we’ve put together this radiator repair buying guide.

Our 15 Recommendations:

Our Favorite Radiator Repair Reviews:

Bestseller No. 1
J-B Weld 2120 Radiator Repair Kit
  • RADIATORWELD: Our radiator and plastic tank repair kit has all you need for making professional quality, permanent repairs with state of the art components and easy to follow instructions.
  • COUNT ON US: For more than 40 years, our products have earned a loyal following from people who take pride in their work. With each product we innovate, we continue to provide the world's strongest bond for your projects.
  • SIMPLE TO USE: No removal of tank or radiator is required to stop leaks. Easily fix holes up to 3/8" diam. or cracks up to 4" long. Includes epoxy putty, fiberglass cloth, sandpaper, and applicator.
  • VERSATILE & DEPENDABLE: Great for radiators, washer fluid tanks, storage tanks, water tanks, plastics, composites, PVC and more. Professionals, mechanics and avid DIYers know J-B gets the job done.
  • NO PROJECT TOO BIG OR TOO SMALL: We have all the products you need to get the job done right. JB Weld always delivers the legendary performance of the World's Strongest Bond.
SaleBestseller No. 2
K-Seal ST5501 Multi Purpose One Step Permanent Coolant Leak Repair, Blue
  • Permanent Coolant Leak Repair - Just Shake, Pour And Go
  • Mixes With All Antifreeze
  • No Draining Or Flushing
  • Fixes Cracks And Leaks In Radiator, Head Gasket, Freeze Plugs, Cylinder Heads, Heater Core, Water Pump Casing And Engine Blocks
Bestseller No. 3
Super Glue Pro Seal N62020 Instant Gas Tank and Radiator Repair
  • Instant Gas Tank and Radiator Repair
  • 0.7-Ounce strip
  • Easy to use putty
  • Permanently seals cracks and split seams
  • Hardens like steel
SaleBestseller No. 4
Bar's Leaks 1186 Liquid Aluminum Stop Leak - 16.9 oz , Gray
  • 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
Bestseller No. 5
J-B Weld 8297 HighHeat 550 Degree Epoxy Putty Stick - 2 oz.
  • J-B WELD HIGHHEAT: A hand mixable two part epoxy putty stick that is formulated to repair and rebuild materials that will be exposed to high temperatures in automotive and industrial maintenance applications. J-B Weld HighHeat is designed for DIY repairs on exhaust manifolds, tail pipes, mufflers, engine blocks, duct work and other various high temperature projects.
  • CURE AND SET TIME: After kneading the two part formula together by hand, HighHeat takes 1 hour to set and cures in 8 hours. J-B Weld HighHeat set and cure color is machine grey.
  • PRODUCT FEATURES AND STRENGTH: J-B Weld HighHeat has lap shear strength of 800 PSI at room temperature and 600 PSI at 400oF (204oC) or more. HighHeat is able to withstand continuous heat up to 450oF (232oC) and intermittent heat of 500oF (260oC). HighHeat is 3x stronger at higher temperatures than conventional epoxy puttys and can be tapped and drilled.
  • MAJOR USES: Exhaust Manifolds, Tail Pipes, Mufflers, Engine Blocks, Duct Work, Machinery and other high temperature equipment.
  • DO IT YOURSELF: Big or small, you can DIY it with J-B Weld. Our heavy duty epoxy and adhesives repair & restore it right the first time. J-B Weld delivers superior performance, quality, and results for the World’s Strongest Bond.
SaleBestseller No. 6
Permatex 09116 Fuel Tank and Radiator Repair Kit
  • Seals holes, seams, or cracks on metal tanks, radiators, or gas cans
  • Quickly and easily knead together the two-component stick to form a tight seal
  • Provides excellent chemical and moisture resistance
  • Cures within 2 hours at ideal temperature
  • Not recommended for use on plastic gas tanks
SaleBestseller No. 7
Versachem 90214 Plastic Tank and Radiator Repair Kit - 30 Grams
  • Permanently repairs gasoline and diesel fuel tank leaks
  • Repairs leaks in less than 20 minutes; no draining or welding required
  • Chemical solvent resistance to gasoline, diesel and kerosene
  • Temperature Range: 40°F to 200°F
  • Suggested Applications: Repair pinholes, rust-outs, hairline cracks and holes up to 1/2" in diameter
Bestseller No. 8
Bar's Leaks 1109 Block Seal Liquid Copper Intake and Radiator Stop Leak - 18 oz.
  • Seals larger leaks seals
  • Repairs heater core leaks
  • Repairs freeze plug leaks
  • Repairs blown head gaskets
  • Repairs blocks
Bestseller No. 9
Am Worldwide Stic-tite Aluminum Radiator Repair, 54" Each Coil (1 Piece Stictite Radiator Repair)
  • Shipped from USA
  • Easy to use.
  • Use like a solder for repair of aluminium radiator.
  • 54" each coil.
SaleBestseller No. 10
Northern Radiator Z12156 Radiator Repair Tool
  • Radiator Repair Kit
  • Fit type: Vehicle Specific
  • Northern Radiator Z12156
  • Item Package Weight: 0.1 pounds
Bestseller No. 11
Allstar ALL10680 Radiator Fin Comb Kit , Black
  • Kit includes fin tools that are hand held to straighten and repair damaged fins in most radiators, coolers, and air conditioning condensers
  • Includes six interchangeable heads of 13, 15, 16, 17, 18 and 20 fins per inch
  • Sold as one complete kit
SaleBestseller No. 12
CHENGU 5 Pieces Air Conditioner Fin Cleaner Set 3 Different Fin Comb Condenser Fin Straightener and 2 Different Brush Condenser Complete Category Evaporator Radiator Repair Clean Set
  • What You Will Receive: 3 different fin comb condenser fin straightener and 2 different brush condenser, this is a better comprehensive style on the market which can solve your using problems at one time, bringing your life with more convenience
  • Coil Brush and Plastic Whisk Brush: the stainless steel is suitable for in line condenser; Pull the holder inward and insert the brush's curved head inward to clean the dust or straighten the deformed condenser, the plastic whisk brush is stiff and smooth enough to get the dirt and leave the condenser fins or coils clean without damaging the coils
  • Fin Comb: the fin comb is made of plastic, and the teeth are about a quarter of an inch deep, which is applied to straighten old fins on condensing units; This fin comb tool repairs bent fins and air conditioning condenser brush can clean up the dirt on it
  • Practical Collocation: equipped with two different brushes, the large white brush can clean up quickly and in a large area, and the small blue brush can clean the details in depth; The two kinds of brushes are practical and more efficient to clean up, and they are suitable for more different scenes to meet your different usage needs
  • Warm Notes: regular usage of the radiator cleaning brush to clean the equipment can improve the efficiency of the air conditioner; Efficiency is very significant to the air conditioner, but these might not work on modern radiators that have lots of horizontal pieces and very fine radiator fins
Bestseller No. 13
Rescue Tape | Self-Fusing Silicone Tape | Emergency Pipe & Plumbing Repair | DIY Repairs | Seal Radiator Hose Leaks | Wrap Electrical Wires | Used by US Military | 1” X 12’ | Silicone Rubber | Black
  • Most people carry Rescue tape in their Emergency bag, car or on a boat for unexpected emergencies. Broken radiator hose or hot pipe is easy to fix with Rescue tape because it can handle temperature up to 500F and pressure up to 950 PSI.
  • Rescue Tape is extremely durable, but when it comes time to remove it, it does not leave any sticky residue like a duck tape. Rescue tape does not stick to anything so all you need for a proper application is to stretch it and overlap it.
  • Excellent insulant. It creates Insulation up to 8000 Volts per layer. You can safely put your Christmas lights out, protect your antennas against UV light and corrosion or simply protect wires against harsh conditions and salt water.
  • MILITARY DAMAGE BATTLE KIT: We are proud to say that Rescue tape is the only Silicon tape that is used by U.S.A military in their Recovery and Battle Damage Assessment & Repair Kit (BDAR KIT). Made in U.S.A.
SaleBestseller No. 14
Hy-Poxy H-450 Alumbond 6.5 oz Aluminum Putty Repair Kit
  • Epoxy metal weld for aluminum
  • Repairs HVAC, radiators, engine blocks, boat hulls, equipment, appliances
  • Can be drilled, tapped, sanded, threaded and painted
  • Gives you a non rusting, non magnetic aluminum gray color, stays gray even after sanding/polishing
  • Made in the USA
Bestseller No. 15
Liqui Moly 20132 Radiator Stop Leak, 0.25 l, 1 Pack
  • 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

Last update on 2022-12-06 / Affiliate links / Images from Amazon Product Advertising API

How to find the best radiator repair?

Here, we’ll be going over a number of factors that you can use to ensure that you’re purchasing the best radiator repair for you.

Regardless of which type of item you’re looking to buy, chances are that there are existing buying guides on the internet, all of which aim to give you good radiator repair recommendations.

Despite these recommendations, however, it’s always a good idea to do your own research. In addition to this research, asking yourself the following questions is also super helpful:

  • What features does the radiator repair need to have to be perfect for my needs?
  • What is my budget?
  • Do I need to purchase a certain brand?

Once you’ve answered these questions and have a good idea of what you’re looking for and the buying process becomes much easier. Keep in mind that when looking for the best product, there’s no need to rush. In fact, very rarely are the ideal products found by choosing the first one you see or by basing your decisions on only one factor. Take your time and enjoy the process!

Now, with the answers to the previous questions in mind, we urge you to use our upcoming buying guide for radiator repair to find what you’re looking for:

Brand

In some cases, the brand of radiator repair is very important. For example, if you’re looking for an item that works in tandem with another, you might very well need both products to be the same brand. If this is the case, it’s vital to pay attention to this factor, as choosing the wrong product can mean the difference between wasting your money and buying a great product that functions as it should.

Features

The features in any given radiator repair are important because they can dictate which version of an item you need and how much money you need to spend. Consider all the key features that you want your item to have and don’t settle for anything that doesn’t check at least ¾ of your boxes.

Reviews

Customer reviews about radiator repair are crucial – especially when you’re buying a product that costs a lot of money or serves a big importance. Luckily, most products can be found online, which means that it’s common for there to be scores of customer reviews from those who have already purchased any given product.

Pay attention to these reviews. Take note of the pros and cons that they mention, and factor these into your big decision. In some cases, you’ll be forced to sacrifice one con in order to gain a particular pro, but being aware of the potential con is going to be beneficial in either case.

Quality

Of course, quality is key. You don’t want to purchase a low-quality product. If you do, you run the risk of your item breaking, not working properly, or otherwise proving to be very disappointing, as well as a waste of money.

You can compare radiator repair quality by researching what your potential purchases are made from, contrasting the individual items against each other to discern which one is made of the best materials.

Warranty

Warranty isn’t always going to be important, but it definitely can be. This is especially true if the item in question is tech-related or expensive. A good warranty will be valid for an extended time after purchase and cover a variety of problems ranging from item defects to random accidents, water damage, and other miscellaneous events that could ruin your product.

Conclusion

The quest to find the best radiator repair can be daunting – but it doesn’t have to be. It can be made much easier by asking yourself a few simple questions and then thinking critically about the items you want to buy. Consider their features, quality, brand, warranty, and customer reviews and you’re more likely to make a great purchase.