Heavy Duty Cooling System Stop Leak

Heavy Duty Cooling System Stop Leak Abro

Fast-Acting, Permanent Seal for Cooling System Leaks Get back on the road with confidence using StopLeak® Liquid Heavy Duty. This powerful formula delivers a permanent seal for radiator and cooling system leaks, while also conditioning your system with built-in lubricants and rust inhibitors. It’s the fast, reliable fix your cooling system needs, without the cost of a major repair.