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Radiator Stop Leak


Warco Heavy Duty Stop Leak is a fast-acting, permanent seal for cooling system leaks including aluminum. Safely seals radiator leaks, cracked engine blocks, heater cores, cylinders and gaskets. Contains effective water pump lubricants and corrosion inhibitors.

Available packaging:
Product Number: #

Product Advantages

  • Quick and easy (!)
  • Helps stop radiator leaks and loss of antifreeze
  • Helps repair water cooling systems, radiators, wawter pumps, and heater cores
  • Does not harm hoses, gaskets, water pumps, metal parts

Available in the following sizes:

Package Size Case Size (Cubic Feet) Case Weight (Gross)
6 x 1 gallon (3.8L) plastic bottles 1.56 CF 55 lbs / 24.95 kg
19 Liter Plastic Pail 1.44 CF 42 lbs / 19.05 kg
1 x 55 Gallon (208L) Steel Drum 10.7 CF 520 lbs / 235.87 kg