【Product Size】Core Size: 34" W X 22 2/5" H, Overall Size:44 2/5" W X 26-2/5" H, Inlet Size:1-1/4", Outlet Size: 1-1/2", Transmission Oil Cooler Included: M14*1.5, Engine Oil Cooler Included: M18*1.5 【Fitment】For CHEVROLET SILVERADO 2500 3500 HD 2011-2019 6.0L V8, For GMC SIERRA 2500 3500 HD 2011-2019 6.0L V8 【OEM】84179524, 23324787, 23378650; 13301, 13301C, 13301A, RA13301C, RAD13301 【Performance and Efficiency】Aluminum alloy has a high thermal conductivity and excellent heat dissipation efficiency. The engine/turbine cools down more quickly, maintaining the optimal operating temperature, reducing thermal attenuation, and enhancing power stability. The flat tube design ensures stronger heat dissipation capacity under the same volume 【Durability】Every radiator is subjected to an aging and endurance test in order to validate its performance under severe weather conditions Fitment: For CHEVROLET SILVERADO 2500 HD 2011-2019 For CHEVROLET SILVERADO 3500 HD 2011-2019 For GMC SIERRA 2500 HD 2011-2019 For GMC SIERRA 3500 HD 2011-2019 Fits 6.0L V8 GAS For Automatic & Manual Transmission Models Specifications: High Performance Racing Spec. 4-Row of tubes Core Racing Design Core Material:Aluminum Core Size: 34" W X 22 2/5" H Overall Size:44 2/5" W X 26-2/5" H Inlet Size:1-1/4" Outlet Size: 1-1/2" Transmission Oil Cooler Included: M14*1.5 Engine Oil Cooler Included: M18*1.5 Please Check the Size Before You Buy! Description: This aluminum radiator is designed to provide maximum cooling efficiency to prevent premature engine failure. Its light-weight, and high-heat transferring aluminum features a tube and fin design that, dramatically increases surface area that enables the heat to dissipate more efficiently. This Aluminum Radiator is at least 40% more efficient than stock ones. Most importantly, it has a much higher capacity for coolant than stock ones, which means that your cooling system will be more efficient and will be more resistant to temperature surges in racing applications.