1984-2001 Jeep XJ Aluminum Performance Radiator with extruded core for maximum durability. Direct fit for 91-01 Cherokees. 84-90 models will have to convert to '91-01 style overflow. This radiator uses a custom to Cold Case 41mm extruded core with four cooling flutes for maximum strength and coolant flow. Unlike intercooler cores the Cold Case extruded tube mirrors those of a standard radiator giving them an aero advantage, while raising the burst strength to 100psi and adding much needed torsional rigidity to handle extreme off roading demands. Tube surface area and fin per inch count closely resemble our standard cores so cooling efficiency remains very high and much improved over stock replacement radiators. These COLD-CASE radiators are Tig welded 100 percent aluminum and absolutely beautiful. 100 percent TIG welded All Aluminum Polished OE style tanks 16 fins per inch Corrugated fins that give more surface area and more thermal transfer Pressure tested Direct fitment for 91-01 Jeep XJ XD 41mm extruded core with 4 cooling flutes Fully furnace braised Radiator Specs Core Height: 11 inch Core Width: 31 inch Overall Height: 11 inch Overall Width: 34 inch Overall Thickness: 2.5 inch Upper Hose 1.25 inch Lower Hose 1.5 inch Trans Cooler Fitting: OEM push to click