Arco Starting & Charging A275L-12-N62-IE-50K6CP Zeus A275L High-Output Marine Alternator with Clutch Pulley

The Arco Zeus A275L N62 is a high-performance 12-volt alternator engineered to deliver exceptional power output in a compact footprint. With a maximum cold output of 311 amps and sustained cruising output of 227 amps at 6,000 RPM, this alternator is purpose-built for marine, RV, military, and commercial applications requiring rapid charging of large battery banks.

Advanced Cooling Technology:

• Runs 8-20% cooler than comparable alternators through heat-shedding Cerakote/E-coat finish
• Externally mounted rectifier dissipates heat away from internal components
• Dual cooling fans maximize airflow and reduce operating temperatures
• Maximum continuous operating temperature: 230°F (110°C)

Performance Features:

• Optimized for high output at idle speeds - delivers 198 amps sustained at 3,000 RPM
• 138mm stator with 16-pole rotor for efficient power generation
• 12 avalanche-rated diodes (6 positive, 6 negative) rated at 50A each
• Internal/external regulation capability - includes adapter for optional external regulator
• Compatible with ARCO Zeus Bluetooth regulators for lithium battery charging
• SAE J1171 Certified for quality and reliability

Technical Specifications:

• Voltage: 12V with 14.1V default output
• Maximum alternator RPM: 19,000
• Cut-in RPM: 1,061
• Pulley: 49K6 (6-groove, 49mm) clutch pulley included
• Shaft: 17mm diameter x 25mm long, threaded M17 x 1.5
• Battery terminal: M8 threaded post, side mount
• Weight: 14.9 lbs (6.7 kg)
• Finish: Black Cerakote or E-coating

Application:

• Direct replacement for Mercedes Sprinter alternators (1999-2006)
• Compatible with Mercedes Sprinter factory dual alternator systems (2007-Up)
• Replaces Roadtrek Mercedes dual alternator configurations

Proudly made in the USA, the Zeus A275L reduces or eliminates the need for a separate generator by maximizing power production from your engine. The included clutch pulley, mounting hardware (M17 x 1.5 x 24mm nut with washer), and internal regulator make this a complete, ready-to-install solution.

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