For Chevy/GMC Truck Full Aluminum 3-Row Racing Radiator Constructed of High Quality T-6061 Aluminum Construction. High Performance JDM Spec. 3-Row Racing Design Light Weight Direct Bolt-On OEM Fitment or Replacement. Stronger & Higher Capacity for Coolant than Stock Units Highly Increase Cooling Performance Overall Size: 34.125" x 18.25" x 2.75" . Core Size: 28.25" x 15.75" x 2.00" Inlet/Outlet Diameter: 1.625"/ 1.75"