Shop new, used, and remanufactured Cummins ISB 5.9L Cylinder Heads on MyLittleSalesman.com . Compare active listings with prices from $525 to $2,175. Sellers include Frontier Truck Parts, CRG Heavy Truck Parts, Dutcher's, and more. Filter by condition, price, or year to find the Cummins ISB 5.9L Cylinder Head that fits your job.