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Arco Starting & Charging 4024 Zeus A275L J-180 4" Marine Alternator with Regulator

Manufacturer

Arco Starting & Charging

<h3>Nearly Six Decades of Marine Electrical Excellence</h3><p>ARCO Starting & Charging has been the trusted name in marine electrical components for nearly 60 years, setting the gold standard for OEM-quality replacement parts. Operating from their Florida facility, ARCO manufactures, tests, and warehouses every component in the USA, ensuring rigorous quality control before any part leaves their 100,000-square-foot production center. What sets ARCO apart from competitors is their commitment to testing every unit beyond normal operating conditions, using state-of-the-art computerized assembly lines and automated digital load testers to verify performance specifications.</p><p>The company's dedication to proven dependability has earned them a reputation among marine mechanics, boat owners, and commercial operators who demand reliability in challenging saltwater environments. ARCO products consistently meet or exceed OEM specifications, backed by their comprehensive warranty program that demonstrates confidence in their manufacturing processes. Their engineering team comprises industry veterans with decades of experience in rotating electrical components, providing technical expertise that translates into innovative product solutions.</p><h3>Comprehensive Marine Starting & Charging Solutions</h3><p>ARCO's product lineup addresses every aspect of marine electrical systems. Their <a href="/7236-arco-starting-charging-tilttrim-motors-201071">tilt/trim motors</a> deliver precise control for outboard and stern drive positioning, featuring corrosion-resistant construction and reliable performance in harsh marine conditions. The company's <a href="/7236-arco-starting-charging-starters-inboard-201008">inboard starters</a> and <a href="/7236-arco-starting-charging-starters-outboard-201009">outboard starters</a> utilize high-performance permanent magnet gear reduction technology, ensuring powerful cranking even in cold-start situations. Whether you're maintaining a fishing boat, pleasure craft, or commercial vessel, ARCO's extensive application catalog covers major engine manufacturers including Mercury, Yamaha, Volvo Penta, MerCruiser, and OMC.</p><p>Beyond their traditional marine engine components, ARCO has expanded into high-energy charging solutions through their Zeus product line, which includes high-output alternators in 12V, 24V, and 48V configurations, along with Bluetooth-enabled voltage regulators. This innovation addresses the growing electrical demands of modern boats equipped with electronics, navigation systems, and house battery banks. ARCO's commitment to manufacturing in America means faster availability, with over six months of inventory typically in stock, and direct technical support from the engineers who design and build their products.</p>

Part Number

4024
05/28/2036 6:36 PM
Sale Price

$804.68

2 left at this price

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Usually delivered within 2 days

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Product Details

The Arco Zeus A275L J-180 is a high-output 12-volt marine alternator engineered to deliver exceptional power production in a compact 4-inch saddle-mount design. This American-made alternator is purpose-built for demanding marine, RV, military, and commercial applications where reliable charging performance is critical.

Superior Cooling Technology:

The A275L runs 8-20% cooler than conventional alternators through advanced thermal management, including heat-shedding Cerakote or E-coat finish, dual cooling fans, and an innovative housing design that acts as a heat sink. Cooler operation translates directly to sustained high-amperage output and extended service life.

Impressive Power Output:

  • Maximum output of 311 amps at 9,000 RPM (cold)
  • Sustained cruising output of 227 amps at 6,000 RPM (hot)
  • Sustained idle output of 198 amps at 3,000 RPM (hot)
  • Optimized performance at low RPM eliminates the need for auxiliary generators
  • Rapidly charges large battery banks with consistent power delivery

Technical Specifications:

  • 12-volt system with 14.1V default output voltage
  • 138mm stator size with 16 rotor poles
  • Internal/external regulation capability (internally regulated with adapter for optional external regulator)
  • 12 avalanche-rated diodes (6 positive, 6 negative, 50A rated)
  • Cut-in at 1,061 alternator RPM; maximum 19,000 RPM
  • Standard 49K6 pulley (6-groove, 49mm) on 17mm diameter shaft
  • M8 threaded battery post with side mount configuration
  • Maximum continuous operating temperature: 230°F (110°C)
  • SAE J1171 certified

Application:

Designed to replace most Volvo Penta alternators using a 4-inch J-180 saddle-style mount. Compatible with ARCO Zeus Bluetooth alternator regulators and lithium battery charging systems for maximum performance optimization.

Made in the U.S.A. with premium components for reliability in harsh marine environments.

I did not receive mounting hardware and had to buy my own. Chatted with customer service and they said they would inform the warehouse. Nothing happened.

Easy order delivered on time

Fast service and shipping.

Fast easy and reasonably priced

Ok

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Quick

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