10090422 Hammer Drill Accessories: Dia 19.5mm Carbon Brush Holder Assembly Replacement for AEG M18 18V, M12

This is a replacement carbon brush holder assembly for AEG M18 18V and M12 model hammer drills, with the part number 10090422 and a key dimension of 19.5mm in diameter.

Key Details:

1. Product Type: Carbon Brush Holder Assembly
   The carbon brush holder assembly is a core component in the hammer drill’s motor. Its primary function is to secure the carbon brushes and, via built-in springs and structures, ensure stable contact between the brushes and the motor’s commutator. This guarantees smooth electrical current transmission, maintaining the motor’s normal operation. The assembly typically includes the brush holder body, springs, and terminal connections.

2. Size Specification: Dia 19.5mm (19.5mm diameter)
   This diameter parameter refers to the critical fitting dimension of the assembly, ensuring it can be precisely installed into the corresponding motor position of AEG M18 18V and M12 hammer drills. The accurate fit matches the motor’s structure, preventing installation difficulties or functional failures caused by size mismatches.

3. Compatibility: AEG M18 18V and M12 Hammer Drills
   Exclusively designed for AEG’s M18 18V (18-volt) and M12 (12-volt) series hammer drills—mainstream cordless hammer drills widely used in construction, renovation, and drilling tasks.

4. Replacement Scenarios:
   Required when the original brush holder is damaged (e.g., cracked housing, broken springs, loose wiring), leading to poor brush contact, excessive motor sparking, abnormal noise, or reduced power. Replacing the assembly restores the hammer drill’s performance and protects the motor from further damage.

In summary, this is a dedicated replacement carbon brush holder assembly for AEG M18 18V and M12 hammer drills, serving as a critical component to ensure stable motor operation.