Bosch Forward / Reverse Changeover Lever Slide Switch
It does not fit all models so you need the 10 digit part number of your drill which is found on the rating plate.
PBH2000 RE
PBH2000 SRE
PBH2500 SRE
PBH2800 RE
PBH2900 RE
PBH2900 FRE
PBH3000 FRE
PBH3000-2 FRE
Fits the following tools
3 603 C44 300 PBH 2000 RE Rotary Hammer 230 V /EU
3 603 C44 301 PBH 2000 SRE Rotary Hammer 230 V /EU
3 603 C44 320 PBH 2000 RE Rotary Hammer 230 V /EU
3 603 C44 321 PBH 2000 SRE Rotary Hammer 230 V /OEU
3 603 C44 370 PBH 2000 RE Rotary Hammer 230 V /GB
3 603 C44 371 PBH 2000 RE Rotary Hammer 230 V /GB
3 603 C44 400 PBH 2500 SRE Rotary Hammer 230 V /EU
3 603 C44 420 PBH 2500 SRE Rotary Hammer 230 V /EU
3 603 C44 470 PBH 2500 SRE Rotary Hammer 230 V /GB
3 603 C93 000 PBH 2800 RE Rotary Hammer 230 V /EU
3 603 C93 020 PBH 2800 RE Rotary Hammer 230 V /OEU
3 603 C93 070 PBH 2800 RE Rotary Hammer 230 V /GB
3 603 C93 100 PBH 2900 FRE Rotary Hammer 230 V /EU
3 603 C93 101 PBH 2900 RE Rotary Hammer 230 V /EU
3 603 C93 170 PBH 2900 FRE Rotary Hammer 230 V /GB
3 603 C93 200 PBH 3000 FRE Rotary Hammer 230 V /EU
3 603 C93 220 PBH 3000 FRE Rotary Hammer 230 V /OEU
3 603 C93 270 PBH 3000 FRE Rotary Hammer 230 V /GB
3 603 C94 200 PBH 3000-2 FRE Rotary Hammer 230 V /EU
3 603 C94 202 PBH 3000-2 FRE Rotary Hammer 230 V /EU
3 603 C94 220 PBH 3000-2 FRE Rotary Hammer 230 V /OEU
3 603 C94 270 PBH 3000-2 FRE Rotary Hammer 230 V /GB