9 0 Cummins ISC 8.3 Engine Oil Cooler $70 USD Quality used oil cooler for a Cummins ISC/ISL 8.3 engine, backed by our standard warranty. This 15-plate oil cooler core is commonly used in the following Cummins engines: C Series, ISC... Quantity4ConditionUsedStock Number30OC-3966365-STK MLS Number13374882CategoryEngine Oil Coolers Last Updated8/19/2025 LocationBig Lake, MN, US Sold ByQuality Bus and Truck Parts (844) 580-___ SHOWNUMBERCall Seller Email Seller Save More Info