New Caterpillar C15 ACERT Cylinder Head (Fully Loaded) We offer pressure tested, magnafluxed and x-rayed reconditioned OEM cylinder heads. New and re-manufactured cylinder heads are from Caterpillar©, Cummins©, Detroit Diesel©, Mack©, Volvo© and International©/Navistar©. Call our parts experts for exact pricing and availability. An all new casting with all new valves,valve seats, rotocoils, cam bearings, seals, springs, guides, locks, and injector tubes. The casting contains more nickle and wider water-ways than the original to combat overheating. No core is needed and it can be shipped anywhere in the U.S.A. No core hassles and only one way shipping. New Cylinder Heads are packaged in a protective wooden crate and come with sturdy nylon lifting straps for secure shipping and handling. Our heads are designed to meet the high demands of your engine, provide OEM performance, and are reliable and affordable. Replace your old cracked cylinder head with our new and improved head. One Year/Unlimited Mile Factory Warranty. Compatible with C15 and 3406E (Fits Serial Numbers: 5EK, 6NZ, MBM, MXS, NXS, BXS,and SDP)