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Arco Starting & Charging 4034 Zeus A275L High Output 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

4034
05/28/2036 4:23 PM
Sale Price

$804.68

In Stock (8)

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Usually delivered within 2 days

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Product Details

The Arco Zeus A275L Vortec alternator delivers the highest power output in its size class, engineered specifically for demanding marine, RV, military, and commercial applications. This premium 12-volt alternator rapidly charges large battery banks while maintaining the coolest operating temperatures for sustained peak performance.

Key Features:

  • Maximum output of 311 amps (cold, 9,000 RPM) with sustained cruising output of 227 amps
  • Optimized for high performance at idle speeds—198 amps sustained at 3,000 RPM
  • Runs 8-20% cooler than comparable alternators through advanced thermal management
  • Heat-shedding Cerakote or E-coat finish absorbs less heat for sustained amperage delivery
  • Dual cooling fans and exterior-mounted rectifier for superior heat dissipation
  • Internal regulation standard with adapter for optional external regulation or Bluetooth control
  • Compatible with lithium battery charging systems
  • SAE J1171 certified and made in the USA

Technical Specifications:

  • Voltage: 12V output (14.1V default regulation)
  • Stator: 138mm with 16-pole rotor and large frame design
  • Weight: 14.9 lbs (6.7 kg)
  • Cut-in speed: 1,061 alternator RPM | Maximum speed: 19,000 RPM
  • Diodes: 6 positive, 6 negative, 50A rated avalanche type
  • Maximum continuous operating temperature: 230°F (110°C)
  • Standard pulley: 6-groove, 49mm (49K6) on 17mm diameter shaft
  • Battery connection: M8 threaded side-mount post

Application:

  • Direct replacement for Mando-type alternators using Vortec/GM pad mounting feet
  • Compatible with Mercruiser and Volvo Penta marine engines including 3.0GLM, 3.0GLP, 4.3GXi, 5.7GiL, and 5.7GXiL models on GM blocks

This alternator reduces or eliminates the need for a separate generator by maximizing power production from your engine. All mounting hardware included.

Fast shipping! Received all my difficult to locate parts quickly. Super impressed. Thanks!

Easy

Legit.....no problems

Hard to find tire that was discontinued was available at THMotorSports. Happy to have it and overall good shopping experience.

Very easy shopping experience for the parts I need

Great job i want more merchandise

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