Yamaha Lower Unit Assembly - 200 - 225 - 66K-45300-12-NA - See Description for Applicable Models Siren 3 Pro this gauge is easy to

this gauge is easy to read and fits a standard 2-1/8" (52 mm) dash hole

and nearshore fishing boats

and long-lasting

Your 40-60 hp Mercury four-stroke depends on a tight 120 °F operating window to idle smoothly

• Dual engine

Yamaha Lower Unit Assembly - 200 - 225 - 66K-45300-12-NA - See Description for Applicable Models Siren 3 Pro this gauge is easy toYamaha Lower Unit Assembly 200 225 HP Drivetrain Component 66K 45300 12 NA Overview When a lower unit starts slipping or taking on water, youll feel it fastespecially on these bigger V6 setups. This Yamaha lower unit assembly is built to bring back solid, dependable power transfer and smooth shifting on 200 and 225 horsepower outboards. Its the kind of replacement you go with when you want everything lined up right and running like it should. Once its