ARCO Marine Zeus A275L J180 4-Inch Alternator with Isolated Ground Terminal Block

Zeus A275L J180 4 Alternator with Isolated Ground 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.


• Heat shedding coatings


• Rectifier located on housing exterior


• Dual cooling fans


• OEM components


• 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, keeping the A275L cooler for sustained amperage output.


• Use the ARCO Zeus Bluetooth Alternator Regulator for maximum performance or lithium battery charging.


• SAE J1171 Certified.


• Models available with internal/external voltage regulator.


• Proudly 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 - Internal/External (Internally regulated with adaptor for optional external regulation.)


• 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 Applications:

• Replaces most Volvo Penta alternators using a 4 J180 saddle-style mount

The ARCO Marine Zeus A275L J180 4-Inch Alternator is engineered to deliver the highest power output within its size class, making it an ideal choice for demanding marine, RV, military, and commercial applications. This alternator features a robust design that ensures rapid charging of large battery banks, helping you maintain peak performance during extended operations. Its innovative cooling technology, including heat shedding coatings and dual cooling fans, keeps operating temperatures at their lowest, thereby enhancing durability and performance even under strenuous conditions.

Designed with OEM components and built in the USA, the Zeus A275L offers exceptional reliability and versatility. It can be configured with internal or external voltage regulation, and with the addition of the ARCO Zeus Bluetooth Alternator Regulator, users can optimize performance for lithium battery charging or other specific needs. The alternator is also SAE J1171 certified, ensuring it meets industry standards for quality and safety. Thanks to its efficient design, the A275L reduces the need for a separate generator by creating additional power directly from your engine, making it a cost-effective and space-saving solution.

With a default output voltage of 14.1 volts, this alternator features a 6-groove, 49mm pulley suitable for most applications. Its rugged construction includes a large frame size and a high-capacity diode assembly rated for 50 amps, with maximum output reaching over 300 amps at cold start conditions. The alternator's heat-resistant Cerakote or E-coating finish further protects it from harsh environments, ensuring long-lasting performance. Its innovative design includes a side-mounted M8 threaded battery post and a threaded pulley shaft, making installation straightforward and secure.

Whether you're replacing an existing alternator or installing a new power source, the ARCO Marine Zeus A275L J180 4-Inch Alternator is built to deliver reliable, high-capacity power. Its compatibility with most Volvo Penta models using a 4 J180 saddle-style mount makes it a versatile choice for a variety of setups. Trust the ARCO Marine brand for durable, high-performance components that keep your systems running smoothly and efficiently.

Features:
* High power output for its size class, ideal for demanding marine and industrial applications
* Rapidly charges large battery banks, ensuring consistent power availability
* Advanced cooling system with heat shedding coatings and dual fans for cooler operation
* Constructed with OEM components and built in the USA for reliability and quality
* Versatile regulation options with internal and external voltage regulation compatibility
* SAE J1171 certification, meeting industry safety and quality standards
* Heavy-duty diode assembly rated for 50 amps with avalanche capability
* High maximum output exceeding 300 amps at cold start, with sustained hot and idle performance
* Corrosion-resistant Cerakote or E-coating finish for harsh environments
* Easy installation with side-mounted M8 battery post and threaded pulley shaft
* Compatible with most Volvo Penta models using a 4 J180 saddle-style mount