Keeping your outboard's cooling system in top shape means ensuring every component does its job-starting with the Yamaha Bypass Cover 2 (6G5-11372-00-1S). This essential piece directs coolant flow, preventing overheating and ensuring smooth engine operation. Over time, exposure to heat, saltwater, and daily wear can compromise the integrity of your bypass cover, leading to inefficiencies in temperature regulation. A solid replacement restores proper function and keeps your engine running cool, even under heavy loads.. Built for Reliable Cooling & Protection:. OEM-Exact Fit - Manufactured to Yamaha's precise specifications for a secure installation.. Durable, Corrosion-Resistant Construction - Stands up to harsh marine environments.. Optimizes Coolant Circulation - Prevents overheating and enhances engine efficiency.. Ideal for:. Protecting the bypass system from debris and damage.. Ensuring consistent coolant flow for temperature control.. Replacing a worn or cracked bypass cover to ma