Lower Unit Drain Gasket – Fits Yamaha 4-Stroke Outboards (Replaces Yamaha 90430-08003-00, 90430-08020-00, Mercury 27-81987) 2HP and interchanges with Sierra 18-3016-1

and interchanges with Sierra 18-3016-1 and Mallory 9-45310

making sure it is properly seated in all V-grooves

manufactured before March 2004

For someone with intermediate mechanical skills

Lower Unit Drain Gasket – Fits Yamaha 4-Stroke Outboards (Replaces Yamaha 90430-08003-00, 90430-08020-00, Mercury 27-81987) 2HP and interchanges with Sierra 18-3016-1Product Details This fiber composite Yamaha Outboard Lower Unit Drain Gasket creates a secure, leak free seal for the lower unit drain and vent plugs. It is designed for a wide range of Yamaha 4 Stroke Outboard Motors, from 2. 5 HP to 350 HP, manufactured from 1998 to the present. It serves as a direct replacement for Yamaha part numbers 90430 08003 00 and 90430 08020 00, as well as aftermarket equivalents like Sierra 18 0826 and Mercury 27 81987.