voltage regulator

Ensure reliable electrical charging and stable battery voltage in your Mercury and Mariner outboards with this high-quality rectifier and voltage regulator from AMMA Marine. Designed as a direct aftermarket replacement for OEM part 893640T01 (also replaces Sierra SIE18-5732 and supplier 854515T2), this unit delivers efficient power output and overvoltage protection to keep your boat running smoothly.

This rectifier and voltage regulator combo is compatible with Mercury and Mariner 30, 40, 50, and 60 EFI 4-stroke outboards. Built to withstand harsh marine environments, it offers dependable performance for pleasure boaters. AMMA Marine products are engineered for durability and long-lasting use, and are backed by an industry-leading warranty for hassle-free replacement—simply contact your local retailer for an easy over-the-counter exchange if needed. Patent pending.

• Rectifier and voltage regulator combo for reliable alternator charging
• Durable construction for harsh marine conditions
• Direct aftermarket replacement for OEM part 893640T01
• Compatible with Mercury/Mariner 30/40/50/60 EFI 4-stroke outboards
• Provides efficient power output and overvoltage protection
• Backed by an industry-leading warranty for hassle-free replacement