Original Bosch soft start-up module — part number 1609B03797 — direct replacement designed for Bosch GCM 8 SJL slide mitre saws (appears in Bosch exploded parts lists as item 233).

What it is and what it does:

- Electronic soft‑start / start‑up control module that limits motor inrush current and smooths the initial torque pulse, reducing stress on the motor, switch and gearing so the saw starts more gently and lasts longer.

Fitment and compatibility:

- Intended for Bosch GCM 8 SJL models (examples shown in Bosch power tool parts listings include model codes such as 3 601 M19 100, 3 601 M19 101, 3 601 M19 170 and 3 601 M19 171 and other regional variants).

Key product details:

- Genuine Bosch / original Bosch spare part, sold as the complete soft‑start module (ready to install; matches the factory wiring connector and mounting position).

- Replaces Bosch part 1609B03797 (also listed with formatted variants 1 609 B03 797).

- Typical repair scenario: used when the saw hesitates on start-up, trips circuit protection, or shows intermittent starting; replacing this module restores normal start behaviour and reduces further wear.

Why choose this part:

- Direct-fit genuine Bosch component built to the tool maker’s original specifications — an appropriate choice if you need a reliable replacement to get a GCM 8 SJL back into service quickly. This is one of the specific power tool parts that addresses start-up faults without needing broader motor replacement.

Note: Always isolate power before replacing electrical modules and follow Bosch service guidance for safe installation.

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