A Cummins aftercooler is a device that cools the compressed air produced by a Cummins engine turbocharger or supercharger. This is important because when air is compressed, its temperature rises, reducing its density and oxygen content, negatively affecting engine performance.Compressed air passes t

Customers purchase aftercoolers for QSC 8.3 engines from VRCOOLER as replacements. The cooler we gave to our customers is shown in the physical photo below.