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Arco Starting & Charging 4604 Zeus A8000-48V 8kW Marine Alternator with Clutch

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Arco Starting & Charging

<h3>ARCO Starting &amp; Charging: The Marine Industry&apos;s Gold Standard</h3><p>When a boater turns the key and nothing happens miles from the dock, the name they wish they had trusted is <strong>ARCO Marine</strong>. For more than six decades, ARCO Starting &amp; Charging has been the benchmark for dependable marine engine electrical components — building and testing every unit at their facility in Pensacola, Florida to ensure each part meets or exceeds original equipment manufacturer (OEM) specifications before it ever reaches a customer.</p><p>Founded in 1960, ARCO set out with a straightforward mission: deliver peace of mind to boat owners and marine technicians through products they can rely on. That philosophy hasn&apos;t changed. Every component ARCO manufactures — from outboard <a href="/7236-arco-starting-charging-starter-motor-4152">starter motors</a> to high-output alternators — is rigorously load-tested beyond normal operating conditions. It&apos;s the kind of commitment that has made ARCO the trusted choice of professional marine service technicians and weekend boaters alike for generations.</p><h3>Purpose-Built for the Harshest Marine Environments</h3><p>Saltwater, humidity, and vibration are relentless adversaries for any electrical component. ARCO engineers their products specifically for these conditions. Their <a href="/7236-arco-starting-charging-tilttrim-motors-201071">tilt/trim motors</a> and <a href="/7236-arco-starting-charging-trim-and-tilt-units-201108">trim and tilt units</a> are designed to perform reliably through years of saltwater exposure, while their <a href="/7236-arco-starting-charging-alternators-200087">alternators</a> — including the advanced Zeus High Output Alternator line — are purpose-built to charge modern battery banks faster and handle the electrical demands of today&apos;s feature-rich vessels. ARCO makes OEM replacement parts compatible with leading engine manufacturers including Mercury, Yamaha, Volvo Penta, MerCruiser, Honda, Evinrude, Suzuki, and many others, making cross-referencing straightforward for technicians and DIYers alike.</p><h3>Innovation with the Zeus High Energy Platform</h3><p>ARCO&apos;s Zeus line represents the brand&apos;s push into next-generation marine charging technology. Zeus High Output Alternators and Bluetooth-enabled voltage regulators are engineered for multi-voltage compatibility and rated IP68 for protection against water intrusion — a critical specification in marine applications. The Zeus ecosystem is purpose-built to support lithium battery banks, high-draw accessories, and demanding live-aboard or commercial use cases where consistent power output is non-negotiable.</p><h3>OEM Quality, Factory Warranty, American-Made</h3><p>ARCO backs their entire rotating electric parts lineup — including their <a href="/7236-arco-starting-charging-starters-inboard-201008">inboard starters</a> — with the ARCO Assurance warranty program, offering coverage against defects in materials and workmanship. Manufacturing, quality testing, warehousing, and fulfillment all take place in the United States, giving buyers confidence in consistent quality control from start to finish. For anyone maintaining a vessel and unwilling to compromise on reliability, ARCO Starting &amp; Charging remains the definitive choice in marine engine electrical components.</p>

Part Number

4604
09/11/2036 4:11 PM
Sale Price

$1,806.47

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Product Details

The ARCO Zeus A8000-48V is a high-output 48-volt marine alternator engineered to deliver exceptional power while running cooler and more efficiently than competing units. This 8kW alternator features a native 48V rotor design that turns on at lower RPMs and provides continuous output of over 3kW (55 Amps) at 2,500 RPM and nearly 6kW (111 Amps) at 4,000 alternator RPM. Unlike competitors who repurpose 12V rotors for 48V applications, ARCO's purpose-built 48V rotor and field current design runs significantly cooler, extending service life and ensuring reliable performance.

Key Features:

  • Native 48V rotor design for superior efficiency and cooler operation
  • Rapidly charges large battery banks in marine, RV, military, and commercial applications
  • Optimized for high output at idle speeds, reducing generator dependency
  • Advanced cooling system with dual fans, heat-shedding coatings, and exterior-mounted rectifier
  • E-Coat/Cerakote finish maintains lower operating temperatures for sustained high amperage output
  • Compatible with ARCO Zeus Bluetooth Alternator Regulator for lithium battery charging
  • Includes N62 clutch pulley for smooth engagement
  • SAE J1171 Certified
  • Made in the U.S.A.

Technical Specifications:

  • Voltage: 48V DC
  • Field Type: P-type (external regulation only)
  • Rotor Poles: 16
  • Stator Size: 138mm
  • Weight: 15.89 lbs (7.2 kg)
  • Cut-In RPM: 1,920 alternator RPM
  • Maximum Alternator RPM: 19,000
  • Max Output (Cold, 9,000 RPM): 180 Amps at 53.5V (9,360 Watts)
  • Sustained Cruising Output (Hot, 6,000 RPM): 138 Amps at 53.5V (7,383 Watts)
  • Sustained Idle Output (Hot, 2,500 RPM): 78 Amps at 53.5V (4,173 Watts)
  • Max Continuous Operating Temperature: 100°C (212°F)
  • Standard Pulley: 49K6 (6-groove, 49mm) with clutch
  • Pulley Mount: 17mm diameter shaft, 25mm long, threaded M17 x 1.5
  • Battery Post: M8 threaded post, side mount
  • Diodes: 6 positive, 6 negative, 80A rated avalanche type
  • Finish: Black E-coating

Applications:

  • Direct replacement for factory dual alternator on Mercedes Sprinter RVs (N62 option)
  • Compatible with Roadtrek, Thor, Winnebago, and other Sprinter-based RVs
  • Meets Mercedes Upfitter weight and PTO requirements
  • Marine diesel engine installations
  • Commercial and military vehicle applications requiring high 48V output

This alternator requires an external smart regulator for proper operation. The included pulley hardware consists of an M17 x 1.5 x 24mm nut with 18mm ID x 29mm OD washer.

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As advertised. Fastest delivery ever! Solid business that wants you to be happy with your purchase. I will be back for other great deals.

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