Arco Starting & Charging 40471 Zeus A225OB-12V High Output Outboard Alternator Engineered Kit

The ARCO Zeus A225OB-12V is a 225-amp, 3,500-watt high-output outboard alternator kit purpose-built for Mercury Verado outboard applications. Delivering up to 2–3x faster charge times than stock OEM alternators, this kit provides a complete onboard power upgrade — not just a component swap.

Part of the ARCO Zeus High Energy product family, this alternator is designed to power the demands of today's modern boats, including large lithium battery banks, stabilizers, inverters, air conditioning systems, refrigeration, trolling motors, water makers, and premium audio systems. Charging continues even at low engine speeds and idle, ensuring power is always available on the water.

Kit Includes:

• Zeus A225OB-12V High Output Outboard Alternator
• Alternator positive fuse link wire
• Alternator ground wire
• Battery sense wire
• OEM replacement alternator belt

Key Features:

• 225 amps / 3,500 watts of continuous high-output charging power
• Charges 2–3x faster than standard OEM outboard alternators
• Engineered specifically for Mercury Verado outboard applications
• Supports large lithium battery banks with significantly faster recharge rates
• Maintains charging output at idle and low engine speeds
• Designed to run stabilizers, inverters, A/C, refrigeration, trolling motors, and premium audio
• Complete engineered kit — everything included for a direct installation

ARCO Marine has over 60 years of proven marine electrical expertise, manufacturing and quality-testing products in the USA to meet or exceed OEM standards. The Zeus A225OB-12V is the ideal solution for boaters seeking a serious onboard power upgrade for Verado-powered vessels.