Sierra 18-99407 Voltage Regulator for OMC Johnson Evinrude Outboards

The Sierra 18-99407 is a high-quality replacement voltage regulator designed for OMC Johnson and Evinrude outboard engines. This 10-amp rectifier regulator ensures proper charging system performance by converting alternating current from the stator into regulated direct current for battery charging and electrical system operation.

Key Features:

• Direct replacement for OMC part number 585192
• 10-amp output capacity
• Engineered to meet or exceed OEM specifications
• Precision voltage regulation for optimal battery charging
• Durable construction designed for harsh marine environments
• Also replaces OMC part numbers 582907, 583512, 584205, 584675, and 878332

This voltage regulator is essential for maintaining proper electrical system function and preventing battery overcharging or undercharging. Sierra marine electrical components are manufactured to exacting standards and backed by their limited lifetime warranty, ensuring reliable performance season after season.