110-120V

Genuine Bosch armature (rotor) — part number 16170006AW. This original Bosch rotor assembly is a direct-fit replacement designed to restore commutator contact and motor performance in affected Bosch rotary hammers.

Fits Bosch models including GBH 3‑28 DFR, GBH 3‑28 DRE and the RH 328 VC / RH 328 VCQ series (confirm your tool’s 10 digit version number from the side of the machine to confirm fit).

Built to Bosch tolerances with a precision-machined shaft and commutator surface for correct brush seating and reduced vibration — sold as the complete armature assembly ready for installation. Listed among Bosch power tool parts and commonly used as a repair item in power tool parts inventories for these rotary hammers.

Browse our full range of Bosch hammer drill parts.