ARCO Marine Zeus A275L N62 Alternator w/Clutch Pulley Terminal Block

The Zeus A275L N62 Alternator with Clutch Pulley & Terminal Block is engineered to deliver the highest power output in its class, making it an ideal choice for marine and boating applications. Whether you're outfitting your vessel for long voyages or enhancing your boat's electrical system, this alternator ensures reliable performance and efficient energy production.

Features

• Engineered for high energy production, ensuring your marine systems receive consistent power.
• Perfectly suited for marine, RV, military, and commercial applications, providing versatility across various platforms.
• Rapidly charges large battery banks, keeping your boat’s electrical systems running smoothly.
• Operates at cooler temperatures for increased performance and longevity.
• Runs 8 - 20% cooler than standard alternators thanks to:
  • Heat-shedding coatings
  • External rectifier placement
  • Dual cooling fans
  • OEM-grade components
• Optimized for performance at idle speeds, ensuring efficient power generation even when your engine is running low RPM.
• Reduces the need for a generator by creating additional power directly from your engine.
• Enhanced with E-Coat/Cerakote advanced coatings that absorb less heat, maintaining cooler operation and delivering more sustained amperage.
• Compatible with ARCO Zeus Bluetooth alternator regulators and lithium battery charging systems for maximum performance.
• SAE J1171 Certified, meeting rigorous industry standards for quality and reliability.
• Manufactured in the U.S.A., ensuring high-quality craftsmanship and support.

Technical Specifications

Specification	Details
Voltage	12V
Field Type	P
Rotor Poles	16
Stator Size	138mm
Frame Size	Large
Weight	14.9 lbs / 6.7 kg
Regulation	External Only (Includes terminal block and P-Type harness. Requires external regulator such as ARCO Zeus Bluetooth alternator regulator.)
Output Voltage	14.1V (Default)
Finish	Black Cerakote or E-coating
Cut-In RPM	1,061 Alternator RPM
Maximum Alt RPM	19,000
Battery Post	M8 Thread Post, Side Mount
Standard Pulley	49K6 (6-groove, 49mm)
Pulley Mount	17mm diameter shaft, 25mm long, threaded M17 x 1.5
Pulley Hardware	M17 x 1.5 x 24mm nut with 18mm ID x 29mm OD washer (Included)
Diodes	6 positive, 6 negative, 50A Rated, Avalanche
Max Output (Cold, 9,000 RPM)	311 Amps
Sustained Cruising Output (Hot, 6,000 RPM)	227 Amps
Sustained Idle Output (Hot, 3,000 RPM)	198 Amps
Max Continuous Operating Temperature	110°C / 230°F

Mounting Applications

• Mercedes Sprinter (1999-2006) alternators
• Mercedes Sprinter Factory dual alternator (2007-Up) Replacement
• Replaces Roadtrek Mercedes dual alternator

Download Quick Guide (PDF)

Orders of physical products placed by 3 PM EST M-F typically ships the same day, if all requested items are in stock. Weekend orders will typically ship on Monday.

Shipping takes 2-7 days.

We currently ship to the Contiguous 48 States.

Life of Sailing merch is custom made for the customer after an order is placed. Total turnaround is typically 7-14 days from order to doorstep.