ARCO Marine Zeus A220/3000W 12V HD High Output Alternator – Pad Mount (4044)

The ARCO Marine Zeus A220/3000W (4044) Pad Mount Alternator is a top-tier, heavy-duty charging solution designed for vessels with high electrical demands and large battery banks. Built for extended-duty operation, this alternator delivers exceptional amperage output, efficient cooling, and reliable performance—making it ideal for offshore, cruising, and commercial marine applications.

Extreme Charging Performance

Engineered to deliver industry-leading output, the Zeus A220 ensures fast and efficient battery charging:

• Max Output (Cold): 249 amps

• Sustained Output (Cruise): 228 amps @ 6,000 RPM

• Sustained Output (Idle): 200 amps @ 3,000 RPM 

This allows you to quickly recharge large battery banks, reduce engine runtime, and support high-load systems like inverters and electronics.

Pad Mount Configuration

This version features a pad mount design, making it compatible with engines that require pad-style mounting brackets (commonly found on certain marine diesel and gasoline engines).

• Ideal for specific engine configurations requiring pad mount

• Direct replacement option for compatible setups

• Same performance as J180 version with different mounting style

Advanced Cooling for Continuous Duty

The Zeus alternator is designed for extended runtime under heavy loads:

• Dual internal cooling fans for lower operating temperatures

• Maintains stable output over long periods

• Improves lifespan and efficiency 

Built for Modern Power Systems

Perfect for today’s energy-intensive setups, including:

• Lithium (LiFePO4) battery systems

• AGM and deep-cycle battery banks

• High-output inverter systems

• Multi-bank charging setups

Its high output can even reduce reliance on generators by producing significant onboard power 

External Regulation for Smart Charging

This alternator requires an external regulator, allowing full customization of charging profiles:

• Compatible with ARCO Zeus Bluetooth regulator

• Optimized for advanced battery chemistries

• Enables real-time monitoring and control

Key Specifications

• Model: 4044

• Mount Type: Pad Mount

• Voltage: 12V

• Max Output: 249A (cold)

• Sustained Output: 228A (cruise), 200A (idle)

• Cut-In RPM: 1,288

• Max Alternator RPM: 10,000

• Pulley: K8 59mm

• Shaft Diameter: 7/8” (22.22 mm)

• Weight: 18.7 lbs

• Regulation: External Only (EX)

• Certifications: SAE J1171 compliant 

Ideal Applications

• Offshore cruising vessels

• Yachts with large electrical systems

• Commercial and workboats

• RV and overland power systems

• Boats upgrading from generator-based charging

Why Choose the ARCO Zeus A220 Pad Mount?

The ARCO Zeus A220/3000W (4044) stands out for its high amperage output, efficient cooling, and ability to handle modern electrical loads. With its pad mount configuration, it offers flexibility for specific engine setups while delivering the same industry-leading performance and reliability as the Zeus series.