• Voltage Regulator Rectifier for Johnson Evinrude

• Replaces OEM# 581778 / 173692 / 581366 / 582304 / 583940 / Sierra 18-5709 / Mallory 9-17201 / CDI 153-1778

• Fits: 4 to 60 HP Models 1977-2001

• Replaces the older style 5 wire versions, Grounding is built into the body of the unit

• OE quality aftermarket replacement, Exact item pictured