ARCO Marine Zeus 24V 4kW Low Turn On J180 4 in. Alternator, Isolated Ground

The ARCO Marine Zeus 24V 4kW Low Turn On (LTO) Alternator is engineered for high-energy production in marine, RV, military, and commercial applications. Designed for reliability and performance, this unit features an isolated ground and a native 24V rotor and field current to run cooler and more efficiently than standard 12V-based designs. It provides rapid charging for large battery banks and reduces dependency on auxiliary generators by maximizing engine-driven power output.

Key Features and Specifications:

• Mounting: 4 in. J180 saddle-style mount; replaces most Volvo Penta alternators using this mounting type.
• Performance: Rated for a maximum output of 144 Amps (3,960 Watts) at 9,000 RPM (cold, 27.5V).
• Design: Heat-shedding E-coat finish, dual cooling fans, and exterior-mounted rectifier for optimized thermal management.
• Regulation: External regulation required; optimized for use with the ARCO Zeus Bluetooth Alternator Regulator for lithium battery charging.
• Technical Specs: 16-rotor poles, 138mm stator, 15.89 lbs. weight.
• Compliance: SAE J1171 certified.
• Origin: Made in the U.S.A.

Each unit includes a 6-groove 49mm pulley, a 17mm shaft, and all necessary mounting hardware including an M17 x 1.5 x 24mm nut and washer. The system is designed to operate at a maximum continuous temperature of 100°C (212°F).