Yamaha - Outer plate, cartridge - 6P2-44323-00-00 Mercury-15HP-EFI-2021 A: It means Yamaha has

A: It means Yamaha has released an updated version to replace this part

90116-10328-00 - BOLT

replacement is the better long-term fix

A: Cooling water flow can drop quickly

Low-Friction Inner Core – Helps maintain smooth

Yamaha - Outer plate, cartridge - 6P2-44323-00-00 Mercury-15HP-EFI-2021 A: It means Yamaha hasYamaha Outer Plate, Cartridge Cooling System Component 6P2 44323 00 00 Overview This is one of those parts you dont really think about until youre chasing a cooling issue. Ive pulled apart plenty of setups where something small like this plate was the reason water flow wasnt right. When everythings sealed and sitting correctly, the system runs steady and the motor stays at the right temp. Its not a flashy component, but it helps keep the whole cooling