Original Bosch speed governor (speed regulator), part no. 1607233472 (also listed as 1 607 233 472), designed to restore precise speed control in Bosch Professional angle grinders.

Fits a range of 125 mm Bosch grinders including GWS 12‑125, GWS 13‑125 CI and variants, GWS 17‑125 CI and compatible GWX 13‑125 types — the same regulator used across those service parts diagrams.

What it does: this original Bosch regulator replaces the tool’s speed‑control module to maintain steady rotational speed under load, reduce overheating risk and return consistent cutting/grinding performance. It’s a direct replacement that matches the original mounting and electrical connections for a straightforward swap.

Part reference in Bosch spare‑parts breakdowns corresponds to position 851 for these models, so you can confirm fit on the machine’s type/parts list before installation.

Order this genuine Bosch regulator to get your grinder back to factory speed control and reliable operation.

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