This Genuine Tohatsu Marine Part is a cylinder head gasket with the part number 345-01005-1. It is specifically designed for Tohatsu outboard motors and is used to create a tight seal between the cylinder head and the engine block. This gasket is made from high-quality materials to ensure durability and reliability. It is an essential component for maintaining the proper compression and combustion within the engine, preventing any leakage of gases or fluids. With this Genuine Tohatsu Marine Part, you can be confident in the performance and longevity of your outboard motor.