CRC K&W Cooling System Stop Leak Radiator Head Gasket Engine Block (15 Floz Bottle 443ml) Made In USA 100% KW 401214

*Permanently fixes radiators, head gaskets, engine blocks, heater cores, water pump housing, and freeze plugs.
*Using nanotechnology, this product fills in cracks & crevices other products can’t, making a stronger, more solid bond
*Won’t clog cooling systems. Compatible with all types of antifreeze and coolant.
 

Read entire label before using product. For cooling systems up to 20 quarts capacity (cars, passenger trucks, vans).

• With engine off and cooled, remove radiator cap.
• Shake bottle vigorously for 30 seconds.
• Very slowly pour the correct amount into car or light truck radiator. DO NOT pour directly onto radiator core/fins.
• Replace radiator cap and run engine up to operating temperature until leak stops.