Bosch 1610021004 Spare Part - Shift Plate

Genuine Bosch Shift Plate — part 1610021004 (also shown as 1.610.021.004)

Description:
- Direct replacement shift plate used in the mode/gear selector of Bosch rotary-hammer drills. It’s the small internal plate that the selector mechanism rides against to switch between drill, hammer, and hammer+drill modes and restores crisp, reliable mode changes.
- Sold as a single genuine Bosch spare part (listed under Bosch part no. 1610021004 / 1 610 021 004).
- Fits into the selector/gear assembly (appears on Bosch exploded diagram of Power Tool Spares), so installation requires disassembly of the selector/gear housing and replacement of the plate and any worn retaining pins or springs.

Example compatible models:
- GBH 2‑20 / GBH 2‑20 RE / GBH 2‑20 D series.
- GBH 200 / GBH 2000 and GBH 220 / GBH 220D series (and related 2‑kg-class rotary hammers).
- GBH 18V‑20 cordless variants.

Why this part matters:
- If your tool’s mode selector is loose, catches between modes, or won’t stay in the selected mode, a worn or broken shift plate is a common root cause. Replacing the Bosch 1610021004 shift plate returns the selector to factory alignment and engagement so the tool operates as intended.

Note:Part Number : 1610021004 is a Genuine Bosch replacement part and can be ordered through the website PowerToolSpares