New in box starter solenoid. I bought it for my 5.0 Mercruiser MPI Alpha One Gen II as a spare. Ended up selling boat and don't need anymore. This fits many models:
Replaces the following part numbers: Crusader RU0050A, Crusader RU0050B, Mercury 809463, Mercury 809643-1, Mercury 809463A1, BRP-OMC 3850216, PLEASURECR+H79AFT RU0050A, Pleasurecraft RU0050B, Volvo 3850216-7, Volvo 3859054, and Sierra 18-5811