Max Continuous Operating Temperature - 110C / 230F
Mounting Application:
Replaces most small case styles using a 3.15 saddle style mount (e.g., Hitachi, Lucas, Mitsubishi). Most Yanmars. Requires Standard single V belt upgrading to a Serpentine System
The ARCO Marine Zeus A225S 3.15 Alternator is engineered for high energy production, making it ideal for marine, RV, military, and commercial applications. Its design ensures rapid charging of large battery banks while maintaining optimal performance at various engine speeds. The alternator features a compact small frame size and a robust 12-volt output, providing reliable power in demanding environments. Its innovative heat shedding coatings and dual cooling fans keep operating temperatures 8-20% cooler than traditional alternators, which enhances durability and efficiency even during extended use. The exterior-mounted rectifier and advanced Cerakote or E-coating finish further contribute to its high-performance operation and corrosion resistance. The Zeus A225S is compatible with ARCO Zeus Bluetooth regulators for maximum performance and lithium battery charging, offering versatile integration options. Certified under SAE J1171 standards, this alternator is built with OEM components and proudly manufactured in the USA, ensuring quality and longevity for critical applications. Its features include a 16-pole rotor, 130mm stator, and a maximum output of 254 amps at 9,000 RPM, with sustained outputs of 187 amps at 6,000 RPM and 157 amps at 3,000 RPM. An M8 side post connection and a standard 6-groove pulley facilitate easy installation. Designed to replace most small case alternators with a 3.15 saddle mount, it is suitable for systems using V-belts or upgrading to a serpentine belt system. The ARCO Zeus A225S delivers consistent power, efficient cooling, and robust components, making it an excellent choice for high-demand applications where reliable, sustained power output is critical.
Features:
Engineered for high energy production in demanding environments
Suitable for marine, RV, military, and commercial applications
Rapidly charges large battery banks for extended use
Runs 8-20% cooler than incumbent alternators due to heat shedding coatings and exterior rectifier
Dual cooling fans improve operating temperatures and performance
OEM components ensure durability and reliability
Optimized for performance at idle speeds for increased efficiency
Reduces reliance on generators by generating additional power with your engine
Advanced E-Coat/Cerakote coating absorbs less heat for sustained amperage output
Compatible with ARCO Zeus Bluetooth Alternator Regulator for maximum performance
SAE J1171 Certified for quality assurance
Models available with internal or external voltage regulation
Made in the U.S.A., ensuring high manufacturing standards
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