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Arco Starting & Charging 4018 Zeus A225S High Output Marine Alternator 12V 225A

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

4018
06/21/2036 9:17 AM
Sale Price

$815.64

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Product Details

The Arco Zeus A225S 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 is designed to rapidly charge large battery banks while maintaining the coolest operating temperatures in its category.

Key Features:

  • Maximum output of 254 amps cold at 9,000 RPM; 187 amps sustained cruising output at 6,000 RPM
  • Runs 8-20% cooler than competing alternators through advanced heat-shedding Cerakote or E-coating finish
  • Dual cooling fans and exterior-mounted rectifier for superior heat dissipation
  • Optimized for strong performance at idle speeds with 157 amp output at 3,000 RPM
  • Internal or external regulation capability; compatible with Arco Zeus Bluetooth regulators for lithium battery charging
  • SAE J1171 certified and proudly made in the USA
  • OEM-grade components with avalanche-rated diodes for reliable operation

Technical Specifications:

  • Voltage: 12V with 14.1V output (default)
  • Stator Size: 130mm with 16 rotor poles
  • Weight: 12 lbs (5.4 kg)
  • Cut-in RPM: 1,061 alternator RPM; Maximum RPM: 19,000
  • Standard pulley: 6-groove, 49mm (49K6) on 17mm diameter shaft
  • Battery connection: M8 threaded post, side mount
  • Diodes: 6 positive, 6 negative, 50A rated avalanche type

Mounting Application:

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

This high-output alternator reduces or eliminates the need for a separate generator by creating substantial additional power directly from your engine. The advanced thermal management system ensures sustained peak performance even under continuous high-load conditions.

Thnx

Everything ok

Easy peasey

Overall very easy.

Fast

Every thing went fast with no problems while ordering

good price

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