Genuine Stella 4T cylinder head and camshaft diagram showing complete cylinder head, camshaft, rocker arm assembly, rocker arm shaft, rocker arm plate, needle cage bearing, intake valve, exhaust valve, valve spring retainer, valve spring seat, valve cotter, tappet adjusting screw, tappet adjuster nut, cylinder head cover, O-rings, gasket set, and mounting hardware for OEM Stella 4T cylinder head and valve train replacement parts.