ARCO Marine Zeus A275L 1-2 Single Foot Alternator w/Terminal Block [4027]

Zeus A275L 1'-2' Single Foot Alternator with Terminal Block: The Top Choice for High Power

This alternator offers the highest power output in its size and class. It's a great option for various uses.

Key Features:

• Designed for high energy production.
• Perfect for marine, RV, military, and commercial applications.
• Charges large battery banks quickly.
• Operates at cool temperatures for better performance, running 8 - 20% cooler than other alternators thanks to heat-shedding coatings, an exterior rectifier, dual cooling fans, and OEM components.
• Optimized for performance at idle speeds.
• Reduces the need for a generator by making extra power with your engine.
• Our advanced E-Coat/Cerakote coating keeps the A275L cooler, giving you more amperage over time.
• For maximum performance, use an ARCO Zeus Bluetooth alternator regulator or lithium battery charging.
• SAE J1171 Certified and made in the U.S.A.

Technical Details:

• Voltage: 12v
• Field Type: P
• Rotor Poles: 16
• Stator Size: 138mm
• Frame Size: Large
• Weight: 14.9 lbs/6.7 kg
• Regulation: External Only (Comes with a terminal block and a P-Type harness, works only 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)
• Diodes: 6 positive, 6 negative, 50A Rated, Avalanche
• 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 Info:

• Replaces most domestic styles with a single 1” or 2” mounting foot (e.g., Motorola, Prestolite)

Quick Guide (pdf)

Using your ARCO Marine Zeus A275L 1-2 Single Foot Alternator is easy. First, make sure it's correctly mounted. It can replace most domestic styles using a single 1” or 2” mounting foot. Connect it to your engine and battery as per the instructions. For best performance, use an ARCO Zeus Bluetooth alternator regulator or lithium battery charging. When using, keep an eye on the operating temperature. It runs cooler than other alternators, but don't let it overheat. The max continuous operating temperature is 110°C / 230°F. For maintenance, regularly check the belts and connections. Make sure the pulley is in good condition and the hardware is tightened. Also, keep the alternator clean from dirt and debris. If you have any questions, refer to the quick guide (pdf) or contact our support team.