Our 6B Cummins long block supreme include: block, rods, crank gear,piston assemblies, head , rear cover & seal, oil filter assembly, water pump, crankshaft,oil pump, cam gear, camshaft, front gear housing, new oil cooler core, valve cover(s), valve train (lifters, pushrods & rocker arms), 6B/5.9L comes with a gasket set, side cover/crankcase breather.