ARCO Marine Zeus A275L Transit Alternator with Terminal Block – High Output Marine and RV Alternator

Zeus A275L Transit Alternator with Terminal Block

High Output / High Amperage Alternator: The Highest Power Output in Its Class.

Features:

• Replace your noisy generator!


• 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


• For maximum performance or lithium battery charging, use the ARCO Zeus Bluetooth Alternator Regulator


• Mercedes requires the use of a clutch pulley on secondary alternators used on all Sprinter vans. For Mercedes Sprinter, please use our N62 with Clutch Pulley here


• SAE J1171 Certified


• Models are available with internal/external voltage regulators


• Proudly made in the U.S.A.

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 (IE) or External Only (EX)


• 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 Ford Transit alternators for 3.5L 3.7L Gas engines 2015-2022

The ARCO Marine Zeus A275L Transit Alternator is engineered for high energy production, delivering the highest power output in its class. Designed to replace noisy generators, this alternator is suitable for marine, RV, military, and commercial applications, enabling rapid charging of large battery banks. Its robust construction and advanced cooling features ensure consistent performance at high amperages, even under demanding conditions. The alternator’s heat-shedding coatings, exterior-mounted rectifier, and dual cooling fans help maintain the coolest operating temperatures, thereby increasing efficiency and longevity.
Built with OEM components and featuring Cerakote or E-coating finishes, the ARCO Marine Zeus A275L is optimized for performance at idle speeds, reducing engine load while generating additional power. For maximum performance or lithium battery charging, pairing it with the ARCO Zeus Bluetooth Alternator Regulator is recommended. The alternator’s design includes a 12-volt output, a rotor with 16 poles, and a large stator, making it suitable for demanding power needs and ensuring reliable operation across various applications. Its M8 threaded side-mount battery post and standard 49mm multi-groove pulley facilitate easy installation and compatibility.
This alternator is SAE J1171 certified and features internal or external voltage regulation options, with a maximum cold output of 311 amps at 9,000 RPM. Its sustained hot cruising output is 227 amps at 6,000 RPM, with a maximum continuous operating temperature of 230°F. The unit weighs approximately 14.9 pounds and is designed for durability and high performance, whether used for marine, RV, or military applications. Designed with specific considerations for Mercedes Sprinter vans, it requires a clutch pulley for secondary alternators on these vehicles. Made in the USA, the ARCO Marine Zeus A275L offers a reliable, high-output solution for demanding power needs in various vehicle and marine systems.
With its advanced cooling, high amperage output, and compatibility with lithium batteries, this alternator ensures you can meet your power requirements with confidence. Whether replacing an existing unit or installing a new system, the Zeus A275L is built to deliver sustained, peak performance in challenging environments, making it an ideal choice for professional and recreational use alike.

Features:

• Replace noisy generators with high output alternator for cleaner operation

• Engineered for optimal energy production in marine, RV, military, and commercial applications

• Rapidly charges large battery banks to ensure consistent power supply

• Heat-shedding coatings and exterior-mounted rectifier for cooler operation

• Dual cooling fans enhance cooling efficiency and performance

• Designed with OEM components for durability and reliability

• Optimized for performance at idle speeds, reducing engine load

• Unleash peak performance with optional Bluetooth regulator for lithium batteries

• Suitable for Mercedes Sprinter vans with specific pulley requirements

• SAE J1171 certified for industry standards compliance