2003-2007 Chevy/GMC 2500 3500 8.1L Allison 1000 High Performance 4 Row Radiator
Performance Extruded Tube Aluminum Radiator For 2003–2007 Chevy/GMC 2500 & 3500 8.1L Vortec with Allison 1000 Transmission Integrated Transmission & Engine Oil Cooling System