Original Bosch 1610210105 O‑ring — precision sealing ring for rotary hammers, engineered to protect the piston/air chamber and keep dust and debris out to maintain impact performance.

Fits Bosch GBH‑series tools (GBH 2‑28, GBH 3‑28 DFR, GBH 36 V‑LI Plus, listed also as 1 610 210 105) and measures approximately 18 mm ID × 25 mm OD for a direct, snug replacement.

Made to Bosch’s factory tolerances for reliable service life, this genuine Bosch 1610210105 is the exact sealing component you need when performing routine maintenance to restore factory performance.

Keep your toolbox stocked with this original Bosch part — ideal when ordering Bosch power tool spare parts for on‑site repairs and preventative maintenance.