Yamaha - Outboard Oil Filter Engine Lubrication Component N26-13440-02-00. Overview. Keeping clean oil circulating through your Yamaha outboard is one of the simplest ways to protect the engine and keep it running strong season after season. This genuine Yamaha oil filter is designed to capture contaminants before they can circulate through critical engine components. Whether you're running long offshore trips or putting steady hours on the motor trolling and cruising, proper filtration helps ma