Sierra 18-99429 Universal Rectifier 20 Amp Marine Charging System

The Sierra 18-99429 is a heavy-duty 20 amp universal rectifier designed for marine charging systems. This rectifier converts alternating current (AC) from the stator into direct current (DC) to charge your battery and power electrical systems on your boat.

Key Features:

• 20 amp rating for reliable charging performance
• Universal design for broad compatibility across multiple marine engine brands
• Durable marine-grade construction to withstand harsh saltwater environments
• Prevents battery drain and ensures proper charging system operation
• Direct replacement for failed or underperforming rectifiers

A properly functioning rectifier is essential for maintaining battery charge during engine operation and powering accessories like tachometers and instrumentation. Symptoms of a failing rectifier include batteries that won't hold a charge, inoperative tachometers, or dim instrument lighting. Sierra rectifiers meet or exceed OEM specifications and are backed by Sierra's quality warranty, making them a trusted choice for marine electrical system repairs and maintenance.