CDI Electronics 5709 Rectifier for 40 HP Johnson Outboards
PART #: 5709
5709 is a rectifier for 40 HP Johnson/Evinrude 1984-96 models. Helps convert charging current for proper battery and electrical system operation. Used when replacing a failed rectifier that causes charging or battery issues.
Replaces OEM#: 175692, 581778
NEVER use maintenance free batteries with rectifiers as over voltage will occur which could damage battery and/or ignition components.