ARCO Marine Premium Replacement Alternator w/Single-Groove Pulley - 12V, 70A

The ARCO Marine Premium Replacement Alternator with Single-Groove Pulley (12V, 70A) is an essential component for maintaining your boat's electrical system. Designed for seasoned anglers and boaters, this alternator ensures that navigation electronics, live wells, and battery banks remain operational during extended trips away from shore.

Engineered as a direct replacement for OEM alternators, this unit delivers reliable performance across varying RPM ranges, making it ideal for both trolling at idle and high-speed operation. The single-groove pulley design is compatible with standard serpentine belt systems, ensuring seamless integration into most recreational and fishing vessels.

This alternator is particularly beneficial for boaters whose vessels originally came equipped with 70-amp charging systems, from small fishing boats to mid-sized cruisers with dual battery banks. Installation is straightforward and requires basic mechanical skills and standard hand tools, allowing for quick setup in confined engine compartments.