ARCO Marine
ARCO Marine — High-Output Alternators Built for Demanding Marine Use
ARCO Marine is the industry leader in high-output marine alternators, engineered specifically for the punishing demands of the saltwater environment. Whether you're upgrading a cruising sailboat to support a lithium house bank or building out a sportfish with serious house loads, ARCO's marine-grade alternators deliver the charging capacity modern boats require.
Why ARCO Marine
Every ARCO alternator is purpose-built for the marine environment — sealed bearings, isolated grounds, corrosion-resistant housings, and balanced rotors engineered for the heat and vibration of an engine room. Unlike automotive units adapted for boat use, ARCO products are designed from the ground up for continuous high-output duty cycles, common on cruising vessels with large battery banks.
Featured ARCO Categories
- High-Output Marine Alternators — Direct replacements and upgrades for Yanmar, Volvo Penta, Cummins, Caterpillar, and most marine diesel engines
- Conversion & Mounting Brackets — Adapters for upgrading OEM alternator capacity
- Pulleys & Drive Components — Marine-rated pulleys for proper belt alignment and load handling
- Starter Motors — Marine-grade replacement starters for major diesel engine platforms
Professional Installation & Charging System Design
Pairing the right ARCO alternator with your battery bank requires careful matching of output, voltage regulation, and belt drive capacity. Our team designs and installs complete high-output charging systems — alternator, external regulator (Wakespeed or Balmar), and proper wiring infrastructure — to safely deliver maximum current to lithium or AGM banks. Contact us for a charging system design tailored to your vessel and battery configuration.
