Yamaha - Key, woodruff - 90280-04002-00 Mercury-75HP-EFI-2009 and balance the engineers intended

and balance the engineers intended for the V12 lineup

It’s designed to resist washout and corrosion even when gear runs wet

Advance Regulator Ready

It is recommended to install the WPS-pumps with an accumulator tank

Yamaha - Key, woodruff - 90280-04002-00 Mercury-75HP-EFI-2009 and balance the engineers intendedYamaha Woodruff Key Flywheel & Shaft Alignment 90280 04002 00 Overview This woodruff key is one of those pieces that quietly keeps everything in sync inside your engine. It holds components in the exact position they need to be so timing stays consistent every time you fire up. Ive seen engines act completely off just because this small part was worn or slightly out of place. Its not complicated, but its absolutely essential if you want things running