Bosch 2609001043 — Worm‑gear pair, genuine Bosch replacement designed to restore the drive gear reduction in green Bosch AKE chainsaws. This precision worm-and-gear set engages the motor output shaft and the chain drive assembly to return correct chain speed and torque, and is supplied as the matched pair you need for a straightforward swap.

Fits Bosch AKE 30, AKE 35, AKE 40 and AKE 35 S (and the related AKE30/35/40 S variants) according to the parts diagrams — check the exploded diagram where it appears as position 26 if you want to confirm fit on your machine.

Marked with Bosch part numbers 2609001043 / 2 609 001 043, this original Bosch worm‑gear pair is made to the same form, fit and engagement as the original item so the chain drive meshes correctly without additional modification. Bosch power tool parts like this are ideal when a worn or damaged gear is causing chatter, skipping or loss of chain movement.

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