Spectra Premium CU1396 Complete Radiator for Jeep Grand Cherokee Innovative engineering, manufacturing technology and quality control ensure that Spectra Premium radiators meet or exceed the performance of the original equipment radiators they replace; that extends to all components, including engine and transmission oil coolers. OE design to ensure exact fit, form and function for an easy drop-in installation, Built with high density mufti-louvered fins for maximum cooling efficiency. Gasket and O-rings are thermal shocked to ensure durability in extreme cold weather, No modifications required for proper fit Engineered to last Perfect fit guarantee