Keeping Your Engine Running with Yanmar 2GM20F Parts

Finding high-quality Yanmar 2GM20F parts is basically a rite of passage for anyone who owns a sailboat from the 80s or 90s. If you've got one of these legendary twin-cylinder engines humming away under your cockpit sole, you already know why people love them. They're loud, they vibrate a bit, but they're incredibly reliable—as long as you actually take care of them. The "F" in the name stands for fresh-water cooled, which is a huge plus for longevity, but it also means there are a few extra bits and pieces in the cooling system you have to keep an eye on. ...

May 17, 2026 · 7 min · Halkan Sauer