The document provides parts information for the engine of a Massey Ferguson MF 1523 compact tractor, including: - The cylinder head, listing 6 parts such as the cylinder head, plugs, and bolts. - The cylinder head cover, listing 6 parts including the valve cover, plugs, and nuts. - The intake manifold with 4 parts like the manifold and mounting screws. - The exhaust manifold with 3 parts including the manifold and mounting gasket and screws. - The cylinder block with 33 parts such as the block, bearings, seals, pins, studs, and covers. Optional bearing kits are also listed.