If your Husqvarna DMS240 concrete core drill is acting up or losing power, these carbon motor brushes might be the fix. This set is brand new, unused, and comes in its original packaging. They're genuine replacement parts with MPN: 529839001 and 505 35 28-01. Over time, brushes wear down and can cause poor performance or even motor failure – swapping them out is a straightforward maintenance task that can extend your drill's life. Perfect for contractors, masons, or serious DIYers who rely on their Husqvarna gear. Keep a spare set on hand to avoid downtime on the job site. No UPC, but these are essential consumables for keeping your heavy-duty drill running smoothly. Don't wait for a breakdown – replace those brushes proactively!