CDI 154-6770 MercuryMariner Outboard Rectifier CDI replacement outboard rectifier for 2346 cylinder MercuryMariner engines. CDI Electronics provides superior ignition and diagnostic solutions to the marine industry. CDI delivers superior product quality and reliability, making them a cost-effective alternative to OEM-supplied components. Fits 1966-1997 7.5 - 200 HP Engines Replaces 62351 62351A1 78614 78614A1 816770 816770T 8M0058226 18-5707 9-17100 Do NOT use with Maintenance Free Battery. Over