For HR4001C and HR4011C rotary hammers, this armature and stator kit is engineered to match the original specifications, providing a direct, hassle replacement that restores your tool's performance. What's included Armature (part 5136337) Stator (part 6257586) 2 CB350 carbon brushes (approximately 6 x 11 x 25 mm) 2 bearings Key benefits Restores original power and reliability after brush wear and stator fatigue Complete motor rebuild in one package, minimizing downtime Direct, exactfit replacement with no modifications required Durable metal construction for long service life Delivers consistent power transmission and improved torque for reliable operation Compatibility and specifications Compatible with HR4001C and HR4011C rotary hammer models Includes the specified part numbers: 5136337 (armature) and 6257586 (stator) Carbon brushes sized approximately 6 x 11 x 25 mm Two bearings included for smooth rotor movement Easy installation Designed as an exact match to the original parts, enabling a straightforward swap No tool modifications or specialized steps required when replacing components Replaces worn components to restore performance and reduce downtime Use scenarios Routine maintenance after extended use: worn brushes and fatigued stator to regain original drilling and chiseling power in concrete and masonry tasks Onsite during renovation projects: quickly rebuild the motor to minimize disruption and keep job progress on track Workshop rebuild after overheating or bearing wear: restore torque and smooth operation to handle demanding drilling and hammering applications This kit provides all essential components for a comprehensive motor rebuild while maintaining compatibility with HR4001C and HR4011C models, ensuring reliable performance and a clean to work.