The Mityvac Cooling System Pressure Test Kit, No. MV4530, quickly reveals external cooling system leaks, and detects internal leaks caused by a blown head gasket, or cracked block or head. The kit comes complete with a high-quality pressure pump and four (4) adapters for connecting to the cooling systems of most US and Asian manufactured cars and light trucks. Includes a cap wrench and custom molded case. Designed for domestic and Asian vehicles.