This Genuine Tohatsu Marine Part is a piston, specifically designed for Tohatsu outboard motors. The part number for this piston is 345-00004-0. It is a high-quality component that ensures optimal performance and durability for your marine engine. The piston is a crucial part of the engine's combustion process, responsible for compressing the fuel-air mixture and transferring power to the crankshaft. With the 361-00004-0+ variant, this piston may have undergone some improvements or modifications to enhance its functionality. Trust this Genuine Tohatsu Marine Part to deliver reliable and efficient performance, ensuring smooth operation of your outboard motor.