3 Row Core All Aluminum Radiator for for 2003-2007 Chevy C4500/C5500/C6500 Kodiak 8.1L, for 2003-2007 GMC C4500/C5500/C6500 Topkick 8.1L, for 2005-2007 Isuzu HTR 7.8L, 2003 2004 2005 2006 2007 2008 2009 03 04 05 06 07 08 09 Core Size: 37.32"H x 19.61"W x 1.73"T; Overall Size: 44.49"L x 21.85"W; Inlet/Outlet: 1.77"/1.77"; Transmission oilcooler: Yes; Part Number: 3529, 1965, SBR13296, TYC13296, 13296, CU13296, KKS13296 High Performance. Full AA5052 Aircraft Aluminum craftsmanship radiator & exclusive tube design that dramatically increases cooling efficiency by up to 30%~45%, strong and durable, 100% welded by TIG, No Epoxy. 100% Leak Tested Easy to Install. Meticulously built to superior OE standards for a precise fit, direct bolt-on replacement. No Drilling or Modifications Needed for Installation Crafted by our professional team using the highest-grade materials for exceptional longevity. Package Include1 x 3-Row AA5052 Aluminum Radiator1 x CNC Machined Radiator Cap1 x AA5052 Aluminum Shroud2 x 14" Fans (Includes mounting kits)1 x Thermostat Relay KitFitmentFor 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, 15013568, 88551, 15170904, 15013546, 15797463, B1449, 1003639, 1003639AN, 1003636AS, 12082101, 1003638, 1003638AS, 21693, 15258918, 19130049, 15797462, M2947001, S6705001Radiator DetailsRow Count: 3 RowCore Size: 37.32"H x 19.61"W x 1.73"TOverall Size: 44.49"L x 21.85"WInlet/Outlet: 1.77"/1.77"Transmission oilcooler: YesPerformance: Up to 30%~45% More CoolingRadiator Crafts:100% welded by TIG, No EpoxyPlacement on Vehicle: Engine CompartmentSurface Finish: Aircraft Grade Raw AluminumPetcoke Drain: OEM Style Brass Petcoke DrainRadiator Cap: CNC Machined Filler Neck And CapFan DetailsMaximum Fan CFM: 2200±200Fan Diameter x Height x Thickness:14.05" x 14.05" x 2.5"Number of Blades: 8 blades (Plastic)Maximum Fan RPM/Amp Draw: 2,250 rpm/12.70 ampsRelay Kit InstructionsRED + connect directly to battery.WHITE wire to ignition switch power source.BLACK goes to thermos switch.BLUE wire goes to the Fans.