Browse Caterpillar C18 Intercoolers & Charge Air Coolers for sale on MyLittleSalesman.com. Compare prices, photos, and seller details across 5 listings. Caterpillar C18 Charge Air Cooler (ATAAC) pricing ranges from $0 to $0 based on recent marketplace data. Filter by condition, price, or year to find the right Caterpillar C18 Charge Air Cooler (ATAAC).