Yamaha - Tube, water - 6N0-G4361-10-00 Yamalube Fuel Additives & Fogging Oils Mercury – Diesel Vessel Interface

Mercury – Diesel Vessel Interface Panel MECH Inboard | SmartCraft Interface Panel | 8M0070071

3" x 11" is your kind of prop

Aftermarket versions can vary in tolerances or materials

I’ve swapped plenty of them on Yamahas where the issue wasn’t obvious until you looked at temperature behavior over time

Fully potted electrical components for corrosion resistant

Yamaha - Tube, water - 6N0-G4361-10-00 Yamalube Fuel Additives & Fogging Oils Mercury – Diesel Vessel InterfaceYamaha Water Tube Cooling System Component 6N0 G4361 10 00 Overview Cooling issues can sneak up on you, and a lot of times it comes down to something simple like a worn or restricted water tube. Ive seen motors run hotter than they should just because flow wasnt moving clean through the system. When this tube is doing its job, water moves freely and keeps everything at the right temperature. Its one of those quiet parts that protects the whole engine.