The XDP X-TRA Cool Direct-Fit Replacement Radiator is the ultimate upgrade for your aging radiator in the 2001-2005 GM 6.6L Duramax and LLY engines. Designed with cutting-edge techniques borrowed from the heavy-duty trucking industry, this radiator offers superior durability and efficiency compared to OEM options. Say goodbye to overheating and hello to enhanced cooling power that keeps your vehicle running smoothly, even under heavy load.