115V Wire Feed Motor Carbon Brush Assembly with Spring

Restore Smooth Wire Feeding

Is your wire feeder sputtering or struggling to push wire through the liner? Before you blame the gun or the drive rolls, check your motor brushes. The Tweco 407191-002 Brush Assembly is the fix you need for 115V wire feed motors that have lost their pep. When brushes wear out, your motor loses the consistent power it needs to drive wire at a steady speed, leading to frustrating arc instability and burn-backs.

This isn't just a chunk of carbon; it's a full assembly ready to drop into your machine. It comes with the spring pre-attached, taking the guesswork out of tensioning. The spring ensures the brush rides smoothly on the motor's commutator, delivering the steady 115V power required for precision wire delivery. Whether you are running a Thermal Arc feeder or a compatible Tweco system, this part is built to factory specs to get you back to welding quickly.

Don't let a five-dollar part ruin a thousand-dollar job. Keeping a spare set of brushes in your maintenance kit is a smart move for any serious fabricator. Installation is typically straightforward, requiring only basic tools to access the motor housing. Swap out your worn, short brushes for these fresh ones and notice the immediate difference in feed consistency and motor sound.