This high-quality aftercooler core fit is designed to work perfectly with Cummins engines K38 and K50. Made to the highest standards, this part is sure to provide reliable and efficient performance. It is compatible with models K19, K38, K50, QSK NT855, N14, and K60, all of which are made in China. Whether you're looking to replace a damaged aftercooler core or simply want to upgrade your engine, this fit is the perfect choice. It is easy to install and will provide a seamless fit for your Cummins engine. Don't miss out on this opportunity to improve the performance of your heavy equipment.