Motor Kit for HR4001C/HR4011C Contents: 1 x 5136337, 1 x stator 6257586, 2 x carbon brushes CB350, and 2 x bearings for a complete motor rebuild Direct replacement compatibility: Specifically designed for HR4001C and HR4011C models; engineered components fit and function as original parts, reducing guesswork and time performance carbon brushes: 6 x 11 x 25 mm; optimized conductivity and wear resistance to maintain consistent power transfer and extend tool life Bearings for smooth operation: Included bearings reduce friction and vibration, enabling smoother rotation, improved tool efficiency, and minimized noise Use scenarios Rebuilding a worn or overheated HR4001C/HR4011C motor during DIY or professional repairs Replacing worn carbon brushes to restore consistent power delivery in daily jobsite use Performing preventive maintenance or service in workshops to extend tool lifespan