STARTER FITS MERCRUISER STERN DRIVE 454 MAG MPI HORIZON 7.4 9000888 50-808011A05 100% NEW and Made with the Highest Quality Components Available Full One Year Warranty Computer tested for consistent Quality and unsurpassed reliability Starter - Voltage: 12V Rotation: Counterclockwise Teeth On Drive / Splines: 9 Source: Aftermarket