2007 Caterpillar C15, Truck Tractor, Engine Misc Parts, Fits to: Freightliner Columbia 120, (Used) 2006 Caterpillar C15, ENGINE ROCKER ARM ASSEMBLY- (6 Cylinder Set) Part Number: 259-6121/243-2465, ENGINE INFORMATION- Family Number: 6CPXH0928EBK, Serial Number: MXS75086, Reference images for condition, For more information about this item, give us a call. We ship Worldwide! (CRG HEAVY TRUCK PARTS) 929 W PULASKI HWY ELKTON, MD 21921, Serial# MXS75086, Casting# MXS75086, Truck Year 2007 1FUJA6AV27LX29388