1、Applicable Model: The exciter coil assy is replacement for Tohatsu M15D2 M9.9D M18E2 NS18E2 NS25C3 M25C3 M30A4, for 9.9HP 15HP 18HP 25HP 30HP. 2、OE Number: The part numbers for reference are 3G3‑06021‑1, 3G3‑06021‑0, 803702, 803702T. Please confirm whether it is consistent with the OE you need to avoid wrong buying and other problems. 3、Premium Material: Constructed with high strength metal materials, this exciter charging coil ensures excellent durability and stable performance, resistant to wear and tear for long lasting use, can withstand harsh marine environment. 4、Enhanced Performance:The exciter coil can be an important component of the boat engine's AC power generation system, provides efficient power for driving other electronic devices. 5、Easy Installation: The boat exciter charging ignition coil is easy to install and replace, saving time and effort for boat maintenance, no complicated tools required.