Multipurpose 24444 Cooling System Refiller Tool. Why Choose the 24444 Cooling System Refiller Tool?. Manufacturer Part Number: Coolant System Refiller Kit Unit Quantity: 1 Type: Cooling System Refiller Kit,Vacuum Fill Tool,Coolant Leak Tester,Radiator Vacuum Filler,Coolant Refill Kit,Pressure Tester Kit : Coolant System Refiller Kit.