Mercury – Quicksilver 819503T6 Solenoid Kit | Force 40–120HP Outboards | 819503T6Mercury Quicksilver 819503T6 Solenoid Kit Force 40120HP Outboards 819503T6 Overview If you turn the key and hear a click instead of a crank, your solenoid might be the problem. The Mercury 819503T6 Solenoid Kit is the simple, OEM fix that gets your Force 40120HP outboard starting strong again. Built to Mercurys factory standards, this solenoid is tough enough for the marine life sealed tight against salt, spray, and vibration. Its a direct replacement