The Honda 78139YB4000 is a genuine OEM hose band, specifically designed with a 12.5mm diameter. This essential component ensures secure hose connections in numerous Honda Marine outboard engine models, including the BF15D, BF20D, BF25D, BF30D, BF40D, BF50D, BF60A, BF75D, BF90D, BF115D, BF135A, BF150A, BF175A, BF200A, BF225A, and BF250A series. Manufactured to Honda's stringent quality standards, it provides reliable performance and a precise fit for maintaining optimal engine function.