Abstract: A cylinder head elevator tool developed and constructed to expedite the replacement of cylinder head gaskets, pistons, connecting rods, liners or sleeves, intake valves, exhaust valves, and many other associated components in diesel engines. The cylinder head elevator includes a lower bracket or support bracket engageable with the diesel engine cylinder block, an upper bracket or cylinder head bracket, including a collar assembly, engageable with the cylinder head, and a hydraulic jack or hydraulic ram engageable at it's base with said lower bracket and engageable at its moveable shaft end with said upper bracket.