This Genuine Tohatsu Marine Part is a roller bearing with the part number 3B7-60102-0. Roller bearings are essential components in marine engines as they help reduce friction and ensure smooth rotation of various moving parts. This specific roller bearing is manufactured by Tohatsu, a trusted brand known for producing high-quality marine parts. With this genuine Tohatsu roller bearing, you can be confident in its durability and reliability, making it an excellent choice for maintaining and repairing your marine engine.