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Arco Starting & Charging 4403 Zeus 24V 4kW Marine Alternator with Isolated Ground

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

4403
06/21/2036 9:24 PM
Sale Price

$1,236.09

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Product Details

The ARCO Zeus 24V 4kW Low Turn On (LTO) alternator represents the newest generation of high-performance marine electrical systems. This advanced alternator activates at lower engine speeds, operates cooler, and delivers significantly more power than older, larger, and heavier designs. Unlike competitor 24V alternators that use less efficient 12V rotors, the ARCO Zeus utilizes a native 24V rotor and field current for superior efficiency and cooler operation throughout its lifespan.

Outstanding Low-Speed Performance:

The Zeus alternator continuously generates over 1.4kW (51 Amps) at just under 1,500 RPM and nearly 2.4kW (87 Amps) at 2,000 alternator RPM. In practical terms, a marine diesel engine idling at 750 RPM with a 2:1 pulley ratio produces over 1.5kW (55 Amps), while a Mercedes Sprinter at 750 RPM with a 3.21:1 ratio generates over 2.5kW (91 Amps).

Key Features:

  • Engineered for high energy production in marine, RV, military, and commercial applications
  • Rapidly charges large battery banks with sustained high output
  • Heat-shedding E-coat/Cerakote finish keeps the alternator cooler for sustained amperage
  • Exterior-mounted rectifier and dual cooling fans for optimal thermal management
  • J180 4-inch saddle-style mount replaces most Volvo Penta alternators
  • OEM quality components throughout
  • Optimized for performance at cruising speeds, reducing generator dependency
  • Compatible with ARCO Zeus Bluetooth Alternator Regulator for lithium battery charging
  • SAE J1171 Certified
  • Proudly made in the U.S.A.

Technical Specifications:

  • Voltage: 24V with isolated ground
  • Max Output (Cold, 9,000 RPM): 144 Amps / 3,960 Watts at 27.5V
  • Sustained Cruising Output (Hot, 6,000 RPM): 130 Amps / 3,575 Watts
  • Sustained Idle Output (Hot, 3,000 RPM): 108 Amps / 2,970 Watts
  • Cut-In RPM: 1,072 alternator RPM
  • Maximum Alternator RPM: 19,000
  • Weight: 15.89 lbs (7.2 kg)
  • Stator Size: 138mm
  • Rotor: 16-pole design
  • Field Type: P-type
  • Regulation: External only
  • Diodes: 6 positive, 6 negative, 50A rated avalanche
  • Finish: Black E-coating for heat dissipation
  • Battery Post: M8 thread post, side mount
  • Standard Pulley: 49K6 (6-groove, 49mm) included
  • Pulley Mount: 17mm diameter shaft, 25mm long, threaded M17 x 1.5
  • Max Continuous Operating Temperature: 100°C (212°F)

This alternator includes pulley hardware (M17 x 1.5 x 24mm nut with 18mm ID x 29mm OD washer) and is designed to replace most Volvo Penta alternators using a 4-inch J180 saddle-style mounting configuration.

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