Yamaha Lower Unit Assembly - 200 - 225 - 66K-45300-11-NA - See Description for Applicable Models MerCruiser Parts Maintains proper engine cooling for

Maintains proper engine cooling for long-term performance

and small cruisers that demand steady control and clean acceleration

Includes 15ft RG-58 cable

6HK-42676-00-00 - GRAPHIC

The IAC valve may help control idle during:

Yamaha Lower Unit Assembly - 200 - 225 - 66K-45300-11-NA - See Description for Applicable Models MerCruiser Parts Maintains proper engine cooling forThis product has been superseded by: 66K 45300 12 NA Yamaha Lower Unit Assembly 200 225 HP Drivetrain Component 66K 45300 11 NA Overview When a lower unit goes out on these bigger V6 Yamahas, its not something you ignoreit shows up fast in how the boat runs and shifts. This lower unit assembly is built to bring everything back in line, from smooth gear engagement to steady power delivery. Its designed for 200 and 225 horsepower setups where