Sierra Marine Oil Filter 20 Micron 18-7911-1

The Sierra Marine Oil Filter 18-7911-1 is a 20-micron filter designed for specific four-stroke outboard engines. Here's what we know about it:

Features:

20-Micron Filtration: This filter traps particles as small as 20 micrometers, offering superior protection against wear and tear for your engine. This high micron rating might be ideal for engines requiring exceptional oil cleanliness.
High-Efficiency Media: Meets or exceeds OEM specifications, ensuring effective filtration and protecting your engine.
Durable Construction: Built with premium materials to withstand the harsh marine environment. Sources mention features like a heavy-wall steel canister and epoxy coating for corrosion resistance.
Spin-On Design: Allows for easy installation and removal during oil changes.
Anti-Drain Back Valve (Possible): Some sources suggest the presence of 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 18-7911-1 is specifically designed for Honda, Tohatsu, and Yamaha four-stroke outboard engines.