Shop used GMC C7500 Intercoolers & Charge Air Coolers on MyLittleSalesman.com . Compare active listings with prices from $200 to $450. Sellers include Tim Jordan's Truck Parts, DTI Truck Parts, and Holst Truck Parts. Filter by condition, price, or year to find the GMC C7500 Charge Air Cooler (ATAAC) that fits your job.