One New Aftermarket Chevy GM Charge Air Cooler 40 58 x 18 1516 x 2 Models 20072009 TOPKICK, 6000, 7000, 8000 WITH 72L, 78L DIESEL ENGINESTech InfoCORE HEIGHT 40 58CORE WIDTH 18 1516DEPTH 2INLET 3OUTLET 3NOTE THIS CHARGE AIR COOLER WILL REPLACE THE OE PLASTIC TANK MODELS THAT HAVE A 43 COREReplaces Part Numbers 15843438, 15752110, 15843436