This Genuine Tohatsu Marine Part is a piston ring set that is designed to fit specific Tohatsu outboard motors. It is an oversized set, meaning it is slightly larger than the standard size, allowing for a better fit and improved performance. The part number for this set is 361-87124-0. These piston rings are essential components in the engine's combustion process, ensuring proper sealing and compression within the cylinder. Made with high-quality materials, this Genuine Tohatsu Marine Part guarantees durability and longevity, providing reliable performance for your marine engine.