ARCO Marine Zeus A275L 1-2 Single Foot Alternator with Terminal Block

Zeus A275L 1-2 Single Foot Alternator with Terminal Block

The highest power output alternator in its size/class.

Features:

• Engineered for High Energy Production.


• Suitable for Marine, RV, Military, and Commercial applications.


• Rapidly charges large battery banks.


• Coolest operating temperatures for increased performance.


• Runs 8 - 20% cooler than incumbent alternators due to: Heat shedding coatings, Rectifier located on housing exterior, Dual cooling fans, and OEM Components.


• It is optimized for performance at idle speeds.


• Reduces the need for a generator by creating additional power with your engine.


• Unleash peak performance with E-Coat/Cerakote. Our advanced coating absorbs less heat, keeping the A275L cooler. This translates to more amperage for sustained periods.


• Use an ARCO Zeus Bluetooth alternator regulator or lithium battery charging for maximum performance.


• SAE J1171 Certified.


• Made in the U.S.A.

Technical Specifications:

• Voltage - 12v


• Field Type - P


• Rotor Poles - 16


• Stator Size - 138mm


• Frame Size - Large


• Weight - 14.9 lbs/6.7 kg


• Regulation - External Only (These units will come with a terminal block and a P-Type harness. They will only work with an external regulator, such as 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 - 110C / 230F

Mounting Application:

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

The ARCO Marine Zeus A275L 1-2 Single Foot Alternator is engineered to deliver the highest power output within its size class, making it ideal for demanding applications such as marine, RV, military, and commercial use. This alternator is designed for rapid charging of large battery banks and features advanced cooling technology to operate 8-20% cooler than conventional units, thanks to heat shedding coatings, external rectifier placement, dual cooling fans, and high-quality OEM components. Its optimized performance at idle speeds reduces engine load while providing significant power, effectively supplementing generator needs and enhancing overall electrical system efficiency. The use of durable Cerakote or E-coating ensures the alternator remains cool under prolonged operation, enabling sustained amperage delivery during extended use. For maximum performance, pairing the A275L with an ARCO Zeus Bluetooth regulator or lithium battery charger is recommended, ensuring precise voltage regulation and power management. Certified under SAE J1171 standards and proudly manufactured in the USA, this alternator guarantees reliability and quality for critical applications.

Features:

• High energy production engineered for maximum power output

• Suitable for marine, RV, military, and commercial applications

• Rapidly charges large battery banks

• Operates 8-20% cooler with heat shedding coatings, external rectifier, dual cooling fans, and OEM components

• Optimized for performance at idle speeds

• Reduces the need for a generator by generating additional power with your engine

• Advanced coating (Cerakote/E-coating) absorbs less heat for sustained performance

• Compatible with ARCO Zeus Bluetooth alternator regulator and lithium chargers

• SAE J1171 certified for reliability and quality

• Made in the USA for assured craftsmanship