2003 GMC W6500, Truck Delivery, Intercoolers, Fits to: GMC W6500, (USED) 2003 GMC W6500-INTERCOOLER FOR CATERPILLAR 3126. MODEL: 43" X 19" X 1.5", ALUMINIUM. To find out more about this part, give us a call. We ship worldwide! Complete Recycling Group (CRG) 929 W PULASKI HWY ELKTON, MD 21921, Truck Year 2003, VIN 1GDJ6J1C63F508813, Engine Make Caterpillar 1GDJ6J1C63F508813