If you need a reliable, aftermarket charge air cooler for older Peterbilt Super Duty trucks, the BESTfit Super Duty Charge Air Cooler 25 x 27.25 Inch is designed to meet that need. This unit fits Peterbilt 357, 362, 377, 378, and 379 models from the late 1980s through the mid-1990s and is built with a heavy-duty bar-and-plate core that has thick tubes welded directly to the tanks to eliminate the need for a header plate, helping reduce potential leak points. The core measures 25 inches in height by 27.25 inches in width with a 2.625 inch thickness and includes 4.5 inch inlet and outlet connections that match common factory piping. It is manufactured to OE specifications and it replaces numerous original equipment part numbers such as 0514968, 0515020M, and 0516674 among others. There are two purchase options: the standalone charge air cooler or a complete kit that includes four heavy-duty clamps, two red silicone hoses, and a set of mount bushings to support installation. Both variants are backed by a warranty against defects in workmanship and materials from the date of purchase. Before ordering, verify OE numbers, dimensions, and hose connection sizes to make sure this cooler matches your specific application.