【Compatibility】Compatible with 2003-2009 Chevy C4500/ C5500/ C6500 Kodiak 6.6L/ 8.1L; For 2003-2009 GMC C4500/ C5500/ C6500 Topkick 6.6L/ 8.1L; For 2005-2008 Isuzu HTR 7.8L AT Please confirm the compatibility with your vehicle before ordering. Thank you! 【Radiator Size】Core size: 37-1/8"H x 19-7/32" W; Upper Inlet Size: 1-3/4"; Lower Outlet Size: 1-3/4"; Engine Oil Cooler: Yes; Transmission Oil Cooler: Yes 【Material】 All-aluminum design , the corrugated aluminum fins and TIG-welded construction ,is welded in vacuum brazing furnace no epoxy, providing unparalleled performance. This aluminum radiator is at least 35%-40% more efficient than stock ones. 【High Performance】 3-Rows Crossflow radiator, 100% leak and durability tested; built with high-density multi-louvered fins to improve cooling efficiency and ensure durability in extreme cold weather. 【Easy to Install】 Light weight direct bolt-on oem fitment or replacement. Carefully crafted to exceptional OEM standards for precise fit. Package Include: 1 X 3-Row Aluminum Radiator 1 X Aluminum Shroud 2 X 14" Fans (Includes mounting kits) Vehicle Fitment: For 2003-2009 Chevy C4500 Kodiak 6.6L For 2003-2009 Chevy C4500 Kodiak 8.1L For 2003-2009 Chevy C5500 Kodiak 6.6L For 2003-2009 Chevy C5500 Kodiak 8.1L For 2003-2007 Chevy C6500 Kodiak 8.1L For 2003-2009 GMC C4500 Topkick 6.6L For 2003-2009 GMC C4500 Topkick 8.1L For 2003-2009 GMC C5500 Topkick 6.6L For 2003-2009 GMC C5500 Topkick 8.1L For 2003-2007 GMC C6500 Topkick 8.1L For 2005-2008 Isuzu HTR 7.8L AT Radiator Size: High Performance Racing Spec. 3-Row of tubes Core Racing Design Core Height Between Tanks: 37-1/8" Core Width Fin Area Only: 19-7/32" Upper Inlet Size: 1-3/4" Lower Outlet Size: 1-3/4" Engine Oil Cooler: Yes Transmission Oil Cooler: Yes Please Check the Size Before You Buy! Fan Specifications: Diameter : 14'' (Blade to Blade) Voltage: DC 12 Volts Number of Blades: 8 S-Type blades Maximum Fan CFM(Cubic Feet per Minute): 2250cfm Maximum Fan RPM(Revolution(s) Per Minute): 2000±10% Fan Thickness: 2.64" S-Type Blade pull push design, to make air flow more efficient and bring more cooling Effect vDescription: 1.We are specialized in Cooling&Radiator. 2.All our products are 100% fully tested to ensure top quality. 3.Full set in box and 100% brand new. 4.We warranty that all our products are made of the best materials and advanced manufacture technique. 5.Customer service and high-quality products. 6.Easy to Install. About MIONLVE:If you have any questions, please feel free to contact us, we will solve it for you.