ARCO Marine Premium Replacement Outboard Alternator w/Multi-Groove Pulley - 12V 50A

The ARCO Marine Premium Replacement Outboard Alternator with Multi-Groove Pulley is the dependable charging solution serious boaters and anglers need when their factory alternator fails mid-season. Whether you're running a center console, offshore fishing boat, or recreational cruiser, a reliable alternator keeps your electronics, navigation systems, and auxiliary power sources running without interruption. This 12-volt, 50-amp unit is engineered to handle the sustained electrical demands of modern marine engines and accessories, ensuring consistent battery charging even during extended time on the water.

Built to ARCO Marine's proven standards, this replacement alternator features a multi-groove pulley design that optimizes belt engagement and reduces slippage, delivering stable voltage output across varying engine RPMs. The 50-amp capacity provides sufficient reserve charging power for multiple battery banks, fish finders, GPS plotters, live wells, and cabin lighting without voltage sag. Its compact 8-by-8-by-9-inch footprint and 7.3-pound weight make installation straightforward in tight engine bays where space is premium, and the unit's marine-grade construction resists corrosion from salt spray and moisture exposure.

This alternator is ideal for boat owners seeking a direct factory replacement without extensive rewiring or custom mounting. Installation fits standard outboard alternator mounting points and works seamlessly with existing charging harnesses when replacing worn or failed units. Anglers who rely on electronics for navigation, fish detection, and safety systems will appreciate the consistent power delivery that keeps their equipment operational throughout full-day excursions. Proper installation and routine belt maintenance ensure years of dependable service on the water.