Lincoln Electric T2687 Exciter Carbon Brush for SA-200 & Classic Welders

Keep Your Engine Drive Running Smooth

If you are running a classic Lincoln pipeliner like an SA-200 Redface or Blackface, or a workhorse like the SA-250 or Classic 300, you know that the heart of your machine is the generator. When your arc starts getting soft, or you notice your Open Circuit Voltage (OCV) dropping below specs, the first place to look is often the exciter brushes. The Lincoln T2687 is the genuine replacement brush for your exciter, designed to get your machine back to stacking dimes exactly how it should.

Worn-out brushes can cause a heap of trouble. If they get too short, the spring pressure drops, leading to arcing that can pit and score your commutator—a much more expensive repair than a simple brush swap. These T2687 brushes are made to fit perfectly in the holders of your Lincoln engine drive, ensuring solid contact and reliable current transfer. Whether you are restoring an old barn find or doing routine maintenance on your rig truck, don't skimp on the internals.

Installation is straightforward for anyone familiar with these machines. Simply access the exciter housing, lift the spring, remove the old brush, and slide the new T2687 in. It is always best practice to seat (or "bed") new brushes to the curvature of the commutator using a seating stone or sandpaper to ensure maximum contact area right from the start. Keep a spare set in your truck so a worn brush never shuts down your job site.