ONE SHOT

One Shot Radiator Stop Leak is a carefully formulated, non-toxic powder compound ground fine to quickly mix and get into the little nooks and crannies of the cooling system to find those leaks fast and effectively seal them.

One Shot is recommended to prevent radiator stop leaks in rebuilt or replaced engines, heaters or radiators, or when replacing engine gaskets, intake manifolds or water pumps. Special ingredients keep rust and scale from forming and lubricate the water pump.