ARCO Marine Zeus A275L J-180 Alternator, 12V 311A, SAE J1171 Certified

Power your marine and RV systems with the ARCO Marine Zeus A275L J-180 Alternator, engineered for superior high energy production and cool operation. This 12V powerhouse delivers a maximum cold output of 311 Amps, ensuring rapid charging of large battery banks and significantly reducing your reliance on auxiliary generators. Proudly made in the U.S.A. and SAE J1171 Certified, it's built for dependability in the most demanding applications. Upgrade to ARCO Marine for unparalleled electrical performance.

In the Box:

• ARCO Marine Zeus A275L J-180 Alternator
• Integrated Regulator
• Pulley Hardware (M17 x 1.5 x 24mm nut, w/ 18mm ID x 29mm OD washer)

Key Features & Benefits:

• Exceptional Power Output: Delivers a robust 311 Amps max cold output and 198 Amps sustained idle output (hot, 3,000 RPM), ensuring ample power for all your onboard electronics and rapid battery charging.
• Superior Thermal Management: Runs 8-20% cooler than traditional alternators thanks to heat-shedding E-Coat/Cerakote finishes, a rectifier located on the housing exterior, and dual cooling fans for increased performance and longevity.
• Optimized Idle Performance: Engineered to provide significant output even at low engine RPMs, maximizing charging efficiency when trolling or at anchor.
• Durable Construction: Features a resilient E-Coat/Cerakote finish that absorbs less heat, contributing to sustained amperage output and extended product life.
• Versatile Regulation: Internally regulated with an adapter for optional external regulation, offering flexibility for advanced battery charging systems.
• Standardized Mounting: Utilizes a 4-inch J180 saddle-style mount for broad compatibility across various marine, RV, military, and commercial engines.

Compatibility & Pairings:

• Replaces most Volvo Penta alternators using a 4-inch J180 saddle-style mount.
• For maximum performance or lithium battery charging, pair with an ARCO Zeus Bluetooth Alternator Regulator.