The product is a genuine NOS (new old stock) Tecumseh 31317 33149A camshaft designed for use in H30, H35, and other Tecumseh engines. This camshaft is an essential component for controlling the timing of the engine's valves, ensuring proper functionality and performance. Made by the trusted brand Tecumseh, this camshaft is a reliable replacement part for maintaining or repairing your lawn mower or other outdoor power equipment.