ARCO Marine Zeus A275L J-180 3.15 Alternator w/Terminal Block [A275L-12-DF315-EX-49K6]

Zeus A275L J-180 3.15' Alternator with Terminal Block: High-Power Output for Diverse Applications

Meet the Zeus A275L, the most powerful alternator in its size class. It's engineered to produce high energy and is suitable for marine, RV, military, and commercial use.

Key Features:

• Designed for high energy production.
• Great for various applications like marine, RV, military, and commercial.
• Charges large battery banks quickly.
• Operates at cooler temperatures, running 8 - 20% cooler than other alternators. Thanks to heat shedding coatings, an exterior - located rectifier, dual cooling fans, and OEM components.
• Optimized for performance at idle speeds.
• Creates extra power with your engine, reducing the need for a generator.
• With E - Coat/Cerakote, it absorbs less heat, keeping the A275L cooler and providing more amperage for longer.
• Use an ARCO Zeus Bluetooth alternator regulator for top performance or lithium battery charging.
• SAE J1171 Certified and made in the U.S.A.

Technical Details:

• Voltage: 12v
• Field Type: P
• 16 Rotor Poles
• 138mm Stator Size
• Large Frame Size
• Weight: 14.9 lbs/6.7 kg
• External Regulation only. Comes with a terminal block and a P - Type harness. Works with an external regulator like an ARCO Zeus Bluetooth alternator regulator.
• Output Voltage: 14.1v (Default)
• Finish: (Black) Cerakote or E - coating
• Cut - In RPM: 1,061 Alternator RPM
• Maximum Alt RPM: 19,000
• Battery Post: M8 Thread Post, Side Mount
• Standard Pulley: 49K6 (6 - groove, 49mm)
• Pulley Mount: 17mm diameter shaft, 25mm long, threaded M17 x 1.5
• Pulley Hardware: M17 x 1.5 x 24mm nut, w/ 18mm ID x 29mm OD washer (Included)
• 6 positive, 6 negative, 50A Rated, Avalanche Diodes
• Max Output (Cold, 9,000 RPM): 311 Amps
• Sustained Cruising Output (Hot, 6,000 RPM): 227 Amps
• Sustained Idle Output (Hot, 3,000 RPM): 198 Amps
• Max Continuous Operating Temperature: 110°C / 230°F

Mounting:

• Replaces most small case styles using a 3.15' J180 saddle style mount (e.g., Hitachi, Lucas, Mitsubishi) and most Yanmars.

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

Quick Guide (pdf)
Brochure (pdf)

Using the ARCO Marine Zeus A275L alternator is straightforward. First, make sure it's properly mounted. It can replace most small - case alternators with a 3.15' J180 saddle - style mount. Connect it to your engine according to the wiring instructions in the manual. Remember, it only works with an external regulator, so be sure to use one like the ARCO Zeus Bluetooth alternator regulator. When it comes to charging batteries, this alternator can quickly charge large battery banks. It's great for marine, RV, military, and commercial use. As for maintenance, keep an eye on its operating temperature. Thanks to its heat - shedding features, it runs cooler than other alternators, but you still want to make sure it doesn't overheat. Check the connections regularly to ensure they are tight and free of corrosion. If you have any issues or concerns, don't return it to the place of purchase. Instead, contact the manufacturer directly.