ARCO Marine Zeus A275L Transit Alternator w/Regulator

The Zeus A275L Transit Alternator with Regulator is specifically engineered to meet the demanding power needs of marine and boating applications. Delivering exceptional energy output and reliability, this alternator ensures your vessel's electrical systems run smoothly, whether you're cruising at sea or docked at a marina.

Unmatched Performance for Marine Applications

The Zeus A275L stands out as the highest power output alternator in its class and size, making it an ideal choice for marine enthusiasts and professionals alike. Its robust design and advanced engineering ensure consistent power delivery, even in the most challenging marine environments.

Key Features

• High Energy Production: Engineered to deliver maximum power output, ensuring all your marine electronics function efficiently.
• Versatile Applications: Perfectly suited for marine, RV, military, and commercial uses, adapting seamlessly to various power requirements.
• Rapid Battery Charging: Capable of quickly charging large battery banks, keeping your vessel's energy reserves full and ready.
• Cool Operation: Runs 8-20% cooler than standard alternators thanks to:
  • Heat shedding coatings
  • External rectifier placement
  • Dual cooling fans
  • OEM-grade components
• Optimized Idle Performance: Maintains high performance even at low engine speeds, essential for marine engines operating at idle.
• Generator Reduction: Minimizes the reliance on onboard generators by leveraging your engine to produce additional power.
• Advanced Coating: Features E-Coat/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 and lithium battery charging.
• Certified Quality: SAE J1171 Certified and proudly made in the U.S.A.

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

Installation and Compatibility

The Zeus A275L Transit Alternator is designed to seamlessly replace Ford Transit alternators for 3.5L and 3.7L gasoline engines produced between 2015 and 2022. Its versatile mounting options and included hardware make the installation process straightforward, ensuring you can upgrade your marine engine's electrical system with ease.

Why Choose Zeus A275L for Your Marine Vessel?

• Enhanced Reliability: Built with OEM-grade components to withstand the harsh marine environment.
• Superior Cooling: Dual cooling fans and advanced coatings reduce operating temperatures, prolonging alternator life.
• Smart Power Management: Optimized for high performance at idle speeds, perfect for marine engines that spend extended periods at low RPM.
• Future-Proof: Compatible with modern regulation systems and lithium battery setups for advanced power needs.

Important Notice: This product may not be returned to the original point of purchase. Please contact the manufacturer directly with any issues or concerns.

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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.