This professional coolant vacuum refill and leak test system connects quickly to all types of engine cooling systems for fast and efficient service. It performs vacuum leak testing to identify system leaks before refilling, ensuring a reliable and air-free coolant fill. The unit completely refills the cooling system in seconds, eliminating trapped air pockets and preventing airlocks that can lead to overheating.

Designed for high-volume use, this coolant service machine includes a large 3-gallon new-coolant fill tank for rapid refilling and a spacious 12-gallon waste-coolant reservoir with a built-in pump for easy disposal of old coolant. Ideal for professional automotive shops and heavy-duty truck maintenance, it delivers fast, clean, and efficient coolant changes while minimizing downtime.