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Arco Starting & Charging A225S-12-VT-IE-49K6 Zeus High Output Alternator

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

A225S-12-VT-IE-49K6
06/21/2036 6:37 AM
Sale Price

$789.50

4 left at this price

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Usually delivered within 2 days

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Product Details

The ARCO Zeus A225S is a high-output 12V marine alternator engineered to deliver exceptional charging performance in its size class. This Vortec-mounted model features internal/external regulation capability, making it ideal for marine engines with GM-style pad mounting systems including many Mercruiser and Volvo Penta applications.

Advanced Performance Features:

  • 12V output with 254 amp maximum output (cold, 9,000 RPM) and 187 amp sustained cruising output (hot, 6,000 RPM)
  • Runs 8-20% cooler than competitive alternators through E-Coat/Cerakote finish that absorbs less heat
  • Dual cooling fans and external rectifier placement for superior heat dissipation
  • Optimized for performance at idle speeds, reducing need for generator operation
  • 16-pole rotor with 130mm stator and 6 positive/6 negative 50A rated avalanche diodes
  • Compatible with lithium battery charging when paired with ARCO Zeus Bluetooth regulator

Technical Specifications:

  • Voltage: 12V with 14.1V default output
  • Regulation: Internal/External (IE) - internally regulated with adapter for optional external regulation
  • Mounting: Vortec/GM pad mounting feet (replaces Mando-type alternators)
  • Pulley: 49K6 (6-groove, 49mm) with 17mm diameter shaft, M17 x 1.5 threaded
  • Weight: 12 lbs
  • Cut-in RPM: 1,061 alternator RPM
  • Maximum alternator RPM: 19,000
  • SAE J1171 Certified
  • Made in USA

Rapidly charges large battery banks and provides sustained high-amperage output for demanding marine, RV, military, and commercial electrical systems. The A225S is designed to handle the rigorous demands of continuous operation while maintaining cooler operating temperatures for consistent performance.

Good price on good tires

Fast and good price

Everything went well. I'm not sure why a blower fan would be made with any metal that could corrode and yet that's what happened to the old one that is NOT that old.

Good roce fast shipping no problems! Best kind of transaction.

Very satisfied

great prices

Easy

I wish the products had a more detailed description such as listing of it was for the right or left side or the back or front of the vehicle. Having to google part numbers to determine which area of the car was for was quite inconvenient. Other than that it was a great experience with great prices!

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