For 2003-2009 Chevy C4500/C5500 Kodiak 6.6L 8.1L; For 2003-2007 Chevy C6500 Kodiak 8.1L; For 2003-2009 GMC C4500/C5500 Topkick 6.6L 8.1L; For 2003-2007 GMC C6500 Topkick 8.1L; For 2005-2008 Isuzu HTR 7.8L; 2003 2004 2005 2006 2007 03 04 05 06 07 Core Size: 37 1/3" W x 19 3/5" H; Overall Size: 44 1/2" W x 21 6/7" H; Inlet Neck: 1-3/4"; Outlet Neck: 1-3/4"; Enginer Oil Cooler: Yes; Transmisson Oil Cooler: Yes; Part Number: 13296, CU13296, SBR13296, TYC13296, KKS13296 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 Radiator is at least 30%-45% more efficient than stock ones. This Aluminum Radiator is designed to provide maximum cooling efficiency to prevent premature engine failure. Most importantly, it has a much higher capacity for coolant than stock ones, which means that your cooling system will be more efficient. Crafted by our professional team using the highest-grade materials for exceptional longevity. Any problem, such as quality problems (leaking)/damaged/not received, please contact us via email first Application:For 2003-2009 Chevy C4500 Kodiak 6.6LFor 2003-2009 Chevy C4500 Kodiak 8.1LFor 2003-2009 Chevy C5500 Kodiak 6.6LFor 2003-2009 Chevy C5500 Kodiak 8.1LFor 2003-2007 Chevy C6500 Kodiak 8.1LFor 2003-2009 GMC C4500 Topkick 6.6LFor 2003-2009 GMC C4500 Topkick 8.1LFor 2003-2009 GMC C5500 Topkick 6.6LFor 2003-2009 GMC C5500 Topkick 8.1LFor 2003-2007 GMC C6500 Topkick 8.1LFor 2005-2008 Isuzu HTR 7.8LPart NumberManufacturer Part Number: 3529, 1965, SBR13296, TYC13296, 13296, CU13296, KKS13296OEM part numbers: 15797461, 15170906, 15258917, 150113551, 19130050, 1579463, 1501356888551, 15170904, 15013546, 15797463, B1449, 1003639, 1003639AN, 1003636AS, 120821011003638, 1003638AS, 21693, 15258918, 19130049, 15797462, M2947001, S6705001Package Includes:1 X 4-Row Aluminum RadiatorRadiator Size:High Performance Racing Spec.4-Row of tubes Core Racing DesignCore Size: 37 1/3" W x 19 3/5" HOverall Size: 44 1/2" W x 21 6/7" HInlet Neck: 1-3/4"Outlet Neck: 1-3/4"Enginer Oil Cooler: YesTransmisson Oil Cooler: YesDescription: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.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.