Mastercool 43301 A Cooling System Test Vacuum Purge and Refill Kit

The Mastercool 43301 A Cooling System Test Kit is designed to detect both external and internal engine leaks, including blown gaskets and cracked blocks. Its vacuum type cooling system allows accurate testing with a 0 to 35 psi range using the included hand pump and gauge. The kit features a vacuum purge and refill tool for quick coolant replacement without introducing air into the system. It includes a thermometer, universal radiator cap, blue radiator cap connector and coolant hose. With 19 adapters that fit most domestic and import vehicles, this kit provides comprehensive capability for professional cooling system diagnostics.