My Account
Shopping Cart

Arco Starting & Charging 4026 Zeus A275L High Output Marine Alternator with Clutch Pulley

Manufacturer

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

4026
09/12/2036 6:41 AM
Sale Price

$963.94

2 left at this price

delivery box

Usually delivered within 2 days

free shipping

FREE SHIPPING

Authorize Seller Badge
No Hassle Returns

No Hassle Returns

Live-in-stock inventory

Live-in-stock inventory

Fitment guaranteed

Fitment guaranteed

Product Details

The Arco Zeus A275L N62 is a high-performance 12-volt marine alternator engineered to deliver the highest power output in its size class. Designed for demanding marine, RV, military, and commercial applications, this alternator rapidly charges large battery banks while operating at significantly cooler temperatures than conventional units.

Advanced Cooling Technology:

  • Runs 8-20% cooler than standard alternators through heat-shedding Cerakote or E-coat finish
  • Exterior-mounted rectifier for improved heat dissipation
  • Dual cooling fans for maximum airflow
  • Maximum continuous operating temperature of 230°F (110°C)

Exceptional Power Output:

  • 311 amps maximum output (cold, 9,000 RPM)
  • 227 amps sustained cruising output (hot, 6,000 RPM)
  • 198 amps sustained idle output (hot, 3,000 RPM)
  • Optimized for performance at idle speeds
  • Reduces or eliminates the need for a separate generator

Technical Specifications:

  • Voltage: 12V (14.1V output default)
  • Field Type: P-Type with external regulation only
  • 138mm stator size with 16 rotor poles
  • Cut-in speed: 1,061 alternator RPM
  • Maximum alternator RPM: 19,000
  • Weight: 14.9 lbs (6.7 kg)
  • Avalanche diodes: 6 positive, 6 negative, 50A rated

Mounting and Connections:

  • Standard 49K6 clutch pulley (6-groove, 49mm diameter)
  • 17mm diameter shaft, 25mm long, threaded M17 x 1.5
  • M8 thread battery post, side mount configuration
  • Includes terminal block and P-Type harness
  • Requires external regulator (ARCO Zeus Bluetooth regulator recommended)

Applications:

  • Mercedes Sprinter 1999-2006 alternator replacement
  • Mercedes Sprinter factory dual alternator 2007-Up replacement
  • Roadtrek Mercedes dual alternator replacement

SAE J1171 certified and proudly made in the USA, the Zeus A275L features premium OEM components and is compatible with lithium battery charging systems when paired with appropriate external regulation.

fast and easy

It came in a day later than I was expecting it. But overall, it was OK

Good

Great prices and fast shipping

Very satisfied

Share icon
Return Policy
Returns are easy at Boatplicity

Not happy with a purchase? No problem. We've made returning items as easy as possible. And most purchases can be returned for free for 30 days. Learn more about our Returns Policy