Mercruiser 120 HP 4 Cylinder Engine Details

The Unsung Hero of the Water: Why the Mercruiser 120 HP 4-Cylinder Still Rocks Let's talk about engines for a minute. Not the fancy new ones with all the bells and whistles, but an old-school workhorse that, frankly, doesn't get enough credit. I'm talking about the Mercruiser 120 hp 4-cylinder. If you've spent any time around lakes or marinas, especially if you're looking at older boats, chances are you've either owned one, known someone who did, or at least heard its distinctive hum. This isn't just an engine; it's practically a legend in its own right, a testament to simplicity and brute-force reliability. ...

December 11, 2025 · 6 min · Mazza Mullin