ARCO Marine Zeus A275L N62 Alternator w/Regulator

The Zeus A275L N62 Alternator with Regulator is designed to deliver unparalleled power and reliability for marine and boating applications. Engineered to meet the demanding needs of the marine environment, this alternator ensures your vessel's electrical systems perform optimally, even under the harshest conditions.

Unmatched Power and Efficiency

The Zeus A275L stands out as the highest power output alternator in its size and class, making it an ideal choice for boats that require robust and consistent energy production. Whether you're outfitting a recreational vessel or a commercial boat, this alternator provides the power you need to keep all your systems running smoothly.

Key Features

• High Energy Production: Engineered to deliver maximum power, ensuring your boat's electrical systems are always adequately powered.
• Versatile Applications: Perfectly suited for marine, RV, military, and commercial uses, offering flexibility across various demanding environments.
• Rapid Battery Charging: Capable of quickly charging large battery banks, minimizing downtime and keeping your boat ready for action.
• Superior Cooling Technology: Operates 8-20% cooler than standard alternators thanks to heat-shedding coatings, an external rectifier, dual cooling fans, and OEM components, enhancing performance and longevity.
• Optimized Idle Performance: Maintains high performance even at idle speeds, reducing the need for additional generators and conserving fuel.
• Advanced Coating: Features E-Coat or Cerakote finishes that absorb less heat, allowing for higher amperage output over extended periods.
• Smart Regulation: Compatible with ARCO Zeus Bluetooth alternator regulators for enhanced performance control and efficient lithium battery charging.
• Certified Quality: SAE J1171 Certified and proudly made in the U.S.A., ensuring reliability and adherence to high standards.

Technical Specifications

Specification	Details
Voltage	12V
Field Type	P
Rotor Poles	16
Stator Size	138mm
Frame Size	Large
Weight	14.9 lbs / 6.7 kg
Regulation	Internal/External (Internally regulated with adaptor for optional external regulation)
Output Voltage	14.1V (Default)
Finish	Black Cerakote or E-coating
Cut-In RPM	1,061 Alternator RPM
Maximum Alt RPM	19,000
Battery Post	M8 Thread Post, Side Mount
Standard Pulley	49K6 (6-groove, 49mm)
Pulley Mount	17mm diameter shaft, 25mm long, threaded M17 x 1.5
Pulley Hardware	M17 x 1.5 x 24mm nut, with 18mm ID x 29mm OD washer (Included)
Diodes	6 positive, 6 negative, 50A Rated, Avalanche
Max Output (Cold, 9,000 RPM)	311 Amps
Sustained Cruising Output (Hot, 6,000 RPM)	227 Amps
Sustained Idle Output (Hot, 3,000 RPM)	198 Amps
Max Continuous Operating Temperature	110°C / 230°F

Easy Installation and Compatibility

The Zeus A275L N62 Alternator with Regulator is designed to replace most Mercedes and BMW alternators, including the Mercedes Sprinter models from 1999-2006 and factory dual alternators from 2007 and up. Its compatibility ensures a straightforward installation process, allowing you to upgrade your vessel's electrical system with minimal hassle.

Enhanced Performance for Marine Applications

Marine environments demand reliable and efficient components. The Zeus A275L is built to withstand the corrosive effects of saltwater and the vibrations of constant use. Its advanced cooling system not only extends the lifespan of the alternator but also ensures consistent power delivery, critical for maintaining onboard electronics, navigation systems, and other vital equipment.

Customer Support and Warranty

Please note: This product may not be returned to the original point of purchase. For any issues or concerns, please contact the manufacturer directly to ensure you receive the appropriate support and assistance.

Additional Resources

For more information, installation guides, and detailed specifications, please refer to the following documents:

• Quick Guide (PDF)
• Brochure (PDF)

Orders of physical products placed by 3 PM EST M-F typically ships the same day, if all requested items are in stock. Weekend orders will typically ship on Monday.

Shipping takes 2-7 days.

We currently ship to the Contiguous 48 States.

Life of Sailing merch is custom made for the customer after an order is placed. Total turnaround is typically 7-14 days from order to doorstep.