Charge air coolers for maintaining your International DuraStar running smoothly are included, and this lineup fits models like the 4100, 4200, 4300, 4400, and even the ProStar. These replacements are designed to optimally enhance the airflow and cooling of your engine for adequate performance. Featuring rugged construction and a direct-fit design, these coolers ensure that installation is fast and easy. Available from 27.95" x 9" to 38" x 7.75", they're designed to fit a wide range of truck configurations. Whether you're replacing a worn unit or upgrading it for additional charging capacity, these BESTfit charge air coolers provide the reliability and performance you demand. Keep your engine cool and your truck road-ready with components designed to meet the demands of heavy-duty work. The coolers presented here would be an excellent choice for keeping up efficiency and prolonging the life of your rig.