Compatible with a wide range of outboard motors including F9.9 F9.9C FT9.9 F13.5A F15 and F15A models accurate fitment for various 9.9hp to 15hp engines Designed as a direct replacement for OEM part numbers 6F5-85570-12 and 6F5-85570-13 simplifying the upgrade or repair process Engineered to regulate voltage output maintaining consistent electrical performance for engine Constructed with materials to withstand marine environments including exposure to salt and vibration Supports ignition system function by delivering stable power to smooth engine start-up and running performance