Yamaha Lower Unit Assembly - 67C-45300-12-8D Mercury-450HP-4-6L-V8-Racing-2020 This product has been superseded

This product has been superseded by: 99999-04477-00

Mercury’s OEM distributor cap and rotor kits are engineered to handle marine heat cycles

not the pedal itself

and marine engines are more sensitive to fuel quality than most people realize

Yamaha Lower Unit Assembly - 67C-45300-12-8D Mercury-450HP-4-6L-V8-Racing-2020 This product has been supersededThis product has been superseded by: 67C 45300 14 8D Yamaha Lower Unit Assembly Complete Drive System 67C 45300 12 8D Overview The lower unit assembly is a critical component of your Yamaha outboard, designed to transfer engine power to the propeller while supporting smooth gear engagement and reliable propulsion. It houses essential drivetrain components such as gears, shafts, and bearings, ensuring efficient operation and precise control on the