Mercury/Mariner 8 & 9.9hp 4-Stroke Alternator Assy (Charging Coil), Ref 855944001 / 3AA-06023-0 | Genuine Tohatsu

This genuine Tohatsu alternator assembly (charging/alternator coil) is used on selected Tohatsu/Nissan 8hp & 9.8hp 4-stroke outboards and is commonly cross-referenced to Mercury/Mariner charging coil part numbers for the 8/9.9hp 4-stroke (209cc) platform. It’s designed to help restore correct battery charging output when the correct match is confirmed.

Before ordering: match your engine model/serial number and confirm the exact part number required in your parts schematic.

• Part: Alternator Assy (charging/alternator coil)
• Genuine OEM: Tohatsu
• Tohatsu OEM refs: 3AA-06023-0 (also listed as 3AA060230M)
• Mercury/Mariner OEM refs: 855944001 (also referenced as 855944T01 in some catalogs)
• Verified Tohatsu/Nissan fitment (model families): Tohatsu MFS8A2 / MFS8A3, MFS9.8A2 / MFS9.8A3; Nissan NSF8A2 / NSF8A3, NSF9.8A2 / NSF9.8A3
• Notes: Often installed as part of an alternator/rectifier accessory setup. Fitment varies by model year and specification—confirm compatibility before purchase.

Important (Tohatsu parts): Product images may be representative and not the exact item supplied. Do not rely on the image—match the exact part numbers (3AA-06023-0 / 3AA060230M and any OEM cross-references) to your required application before ordering.