This aftermarket assembly modifies the original engine oil cooling system in certain diesel trucks. Specifically, it addresses shortcomings associated with the factory-installed oil cooler, which is prone to failure and difficult to access. The modification typically involves moving the oil cooler to a more accessible location, often in front of the radiator or near the frame rail.
Relocating this component can improve serviceability, allowing for easier inspection, repair, and replacement. It can also contribute to improved cooling efficiency by positioning the cooler in a location with better airflow. Over time, the original design has been identified as a common source of problems, leading to the development of these kits as a more reliable and maintainable alternative.