Fixing plow lights with a fisher 3 plug to 2 plug adapter

Finding a fisher 3 plug to 2 plug adapter is usually the first step when you realize your "new" truck won't talk to your trusty old plow. It's a classic scenario: you've upgraded your rig, but you aren't ready to drop several thousand dollars on a brand-new plow blade when the one you have works just fine. The only problem is that the wiring doesn't match up anymore. Fisher changed their setup a while back, moving from the classic two-plug system to the newer three-plug Fleet Flex system, and that's where the headache begins for most of us. ...

February 27, 2026 · 7 min · Mikael Mooo