Core/Overall Size (Inch): 18.1 x 20 x 1.73 / 23 x 26 x 6.7 ; All aluminum 3 row cores Inlet/Outlet Diateter (Inch): 1.25 /1.5 ; Transmission oil cooler thread size: M16 * 1.5 (Z) Leak/durability tested; No drilling or modifications needed for installation Complete aluminum radiator assembly with no plastic end tanks or rubber gaskets Aluminum core and tank prevent rust and corrosion while also limiting weight and promoting durability Buy with no worry-12 months warranty Factory sized cooling hose inlet and outlet connections Higher capacity for coolant than original radiator Upgraded design for increased durability CNC machined cap with engraved craftsmanship & anodized treatment Upper Inlet: 1.25'' at passenger side Bottom Outlet: 1.5'' at driver side Transmission Oil Cooler: ¢26×305×M16*1.5 (Z) MPN: CC2101, AE2101, EC2101, DPI2101, CU2101, MC2101, 5102983AA, 52028041, 52028123, 52029121 52029122, 5102983AA, 52028041, 52028123, 52029121, 52029122, 2102-2AA, SBR2101, RAD1682, KKS2101 SPTCU2101, RK2101, AE2101, EC2101, TYC2101, 1015, 1507, 2101, 2760, RK782 16"" Fan Spec: Voltage: DC 12 volts Maximum Fan CFM: 2150 Wattage: 120 wattage Thickness: 2.5 inch Number of Blades: 10 S-type blades Maximum Fan RPM: 2250 rpm Amp Draw: 10 amps Includes the mounting tabs for an easy zip tie installation Relay kit instruction: * Red to battery * White to ignition power * Black to the temp sensor * Blue to the fan Activates by grounding electric fans at preset temperature 180F / 165F turn on/off temperature This Radiator Compatible with: Compatible with Jeep TJ 2.4L, 2003, 2005-2006 Compatible with Jeep TJ 2.5L, 1997-2002 Compatible with Jeep TJ 4.0L, 1997-2006 Compatible with Jeep Wrangler 2.4L, 2003-2006 Compatible with Jeep Wrangler 2.5L, 1987-1995, 1997-2002 Compatible with Jeep Wrangler 4.0L, 1991-1995, 1997-2006 Compatible with Jeep Wrangler 4.2L, 1987-1990"