Sierra 18-99481 Voltage Regulator for Mercury Mariner Outboard Engines

The Sierra 18-99481 is a premium-quality voltage regulator designed specifically for Mercury and Mariner outboard engines. This critical electrical component maintains consistent charging system performance by regulating alternator output to protect your battery and electrical accessories from voltage spikes and fluctuations.

Key Features:

• Precision voltage regulation maintains optimal charging system performance
• Direct OEM replacement ensures proper fit and function
• Marine-grade construction withstands harsh saltwater environments
• Engineered to meet or exceed original equipment specifications
• Protects batteries and electrical components from overcharging damage

Sierra marine electrical components are manufactured with corrosion-resistant materials and undergo rigorous quality testing to ensure reliable operation in demanding marine conditions. This voltage regulator helps maintain stable 12-volt charging system output, preventing battery damage and extending the life of your electrical system.