ARCO Marine Zeus A225S J-180 Alternator, 12V 254A – USA Made

Unleash superior power and reliability with the ARCO Marine Zeus A225S J-180 Alternator. Engineered for high energy production, this alternator is the highest power output unit in its size and class, specifically designed for demanding marine, RV, military, and commercial applications. Its robust construction and advanced cooling ensure consistent performance, even under extreme conditions, allowing for rapid charging of large battery banks and reducing reliance on a generator. Proudly made in the U.S.A. and SAE J1171 Certified for marine safety, the Zeus A225S provides exceptional peace of mind. Upgrade your electrical system today for sustained, high-output power.

• ARCO Marine Zeus A225S J-180 Alternator
• Pulley Hardware (M17 x 1.5 x 24mm nut, w/ 18mm ID x 29mm OD washer)

• High Power Output: Delivers a maximum output of 254 Amps under cold conditions (9,000 RPM) and maintains an impressive 157 Amps at hot idle speeds (3,000 RPM), significantly reducing the need for a generator.
• Advanced Cooling System: Runs 8-20% cooler than traditional alternators due to heat-shedding Cerakote/E-coat finishes, dual cooling fans, and a rectifier strategically located on the exterior housing for increased performance and longevity.
• Marine Safety Certified: SAE J1171 Certified, ensuring spark-protected operation for marine environments.
• American Craftsmanship: Proudly manufactured in the U.S.A., reflecting superior quality and durability.
• External Regulation (P-Type Field): Designed for external regulation only, with a default output voltage of 14.1V.
• Versatile Mounting: Features a 3.15" J180 saddle style mount, engineered to replace most small case alternators from brands like Hitachi, Lucas, and Mitsubishi.
• Compact & Lightweight Design: Weighs 12 lbs (6.7 kg) with a small frame size, making it suitable for diverse installations.
• Standard Pulley: Equipped with a 49K6 (6-groove, 49mm) pulley for efficient power transfer.

• Engine Compatibility: Optimized for use with 12V systems and widely compatible with most Yanmar engines.
• Recommended Regulator: For maximum performance, especially with lithium battery charging, pair with an ARCO Zeus Bluetooth alternator regulator.