K-Seal Heavy Duty Multi Purpose, One Step, Permanent Coolant Leak Repair, ST5516, 16 OZ

K-Seal HD fixes most leaks in water-cooled engines and is designed specifically for HGVs, tractors, heavy plant and other commercial vehicles. It is compatible with all coolant system additives and kinds of antifreeze, meaning you can use K-Seal HD with confidence at all times.

FEATURES

• A permanent repair that fixes most leaks in larger water-cooled engines
• Seals leaks/cracks in: Radiator, Head Gasket, Heater Core, Freeze Plugs, Water Pump Casing, Cylinder Heads and Engine Blocks