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Arco Starting & Charging 4029 Zeus A275L High Output Marine Alternator 12V 275A Single Foot

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

4029
05/28/2036 4:22 PM
Sale Price

$804.68

In Stock (6)

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Usually delivered within 2 days

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Product Details

The Arco Zeus A275L Single Foot Alternator delivers the highest power output in its size class, engineered specifically for demanding marine, RV, military, and commercial applications. This high-performance 12-volt alternator rapidly charges large battery banks and reduces the need for generator use by maximizing power production from your engine.

Advanced Cooling Technology:

  • Runs 8-20% cooler than conventional alternators through advanced E-Coat/Cerakote heat-shedding finish
  • External-mounted rectifier for superior heat dissipation
  • Dual cooling fans maintain optimal operating temperatures
  • Maximum continuous operating temperature of 230°F (110°C)
  • Cooler operation translates to sustained high amperage output

Performance Specifications:

  • Maximum output: 311 amps at 9,000 RPM (cold)
  • Sustained cruising output: 227 amps at 6,000 RPM (hot)
  • Sustained idle output: 198 amps at 3,000 RPM (hot)
  • Optimized for exceptional performance at idle speeds
  • Output voltage: 14.1V (default)
  • Cut-in RPM: 1,061 alternator RPM
  • Maximum alternator RPM: 19,000

Technical Details:

  • 16-pole rotor with 138mm stator size
  • P-type field with internal/external regulation capability
  • 12 avalanche diodes (6 positive, 6 negative), 50A rated
  • M8 threaded battery post, side mount
  • Standard 49K6 pulley (6-groove, 49mm)
  • 17mm diameter shaft, 25mm long, threaded M17 x 1.5
  • Pulley hardware included
  • Weight: 14.9 lbs

Premium Features:

  • Compatible with Arco Zeus Bluetooth alternator regulator for advanced control
  • Lithium battery charging capable for maximum performance
  • SAE J1171 certified for quality assurance
  • Made in the USA with OEM components
  • Black Cerakote or E-coating finish for durability

Mounting: Replaces most domestic alternators using a single 1-inch or 2-inch mounting foot, including Motorola and Prestolite styles.

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REALLY WAS 2 DAY SHIPPING!

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