Overheating issues with your Chevy or GMC medium-duty truck? This aluminum radiator is a brand new, direct replacement for models like the Kodiak and Topkick (C4500, C5500, C6500 series). It's a crossflow design for efficient cooling, made from durable aluminum, and comes unpainted. The radiator is 100% leak-tested and designed to bolt right in without any drilling or modifications – a true plug-and-play fix. It includes all necessary inlet/outlet ports (1 13/16\) and comes with a 1-year warranty. Whether you're a fleet manager, a mechanic, or an owner-operator, a reliable radiator is key to keeping your truck on the road. Replace that old, clogged, or leaking unit with this quality CM Compressor part and restore proper engine cooling.