The Sierra Marine Oil Filter 18-7909 is a 20-micron filter designed for various outboard engines. Here's a breakdown of its features and compatibility:

Features:

• 20-Micron Filtration: Effectively removes particles as small as 20 micrometers from your engine oil, providing superior protection against wear and tear. This high level of filtration might be beneficial for engines requiring exceptional oil cleanliness.
• High-Efficiency Media: Meets or exceeds OEM specifications, ensuring effective filtration and protection for your engine.
• Durable Construction: Built with premium materials to withstand the harsh marine environment and ensure reliable performance. Sources mention a heavy-wall steel canister and epoxy coating for further corrosion resistance.
• Spin-On Design: Allows for easy installation and removal during oil changes.
• Anti-Drain Back Valve (Possible): Some sources mention an anti-drain back valve that prevents oil from draining back into the engine when the filter is removed, simplifying oil changes.

Compatibility:

The Sierra 18-7909 is a versatile filter that replaces multiple original equipment manufacturer (OEM) filters used in various outboard engines. Here are some confirmed compatible brands:

• Honda: Replaces several Honda OEM filter models, including 15400-POH-305PE, 15400-POH-305, 15400-ZJI-004.