ARCO Zeus 12V 275A 4kW High Output Alternator

Important: All alternators require an external regular, such as the ARCO Zeus.

Warning: Secondary alternator installations should only be performed by qualified professionals. DIY support for secondary alternator installations is not currently available. If needed, we can connect you with an experienced installer.

If you’re unsure about what to order or do not see an option that fits your application, please contact our team at support@trek.systems.

• Engineered for high energy production.
• Suitable for marine, RV, military, and commercial applications.
• Rapidly charges large battery banks.
• Coolest operating temperatures for increased performance:
  • Heat shedding coatings
  • Rectifier located on housing exterior
  • Dual cooling fans
  • OEM components
• Optimized for performance at idle speeds.
• Reduces the need for a generator by creating additional power with your engine.
• Unleash peak performance with E-Coat/Cerakote, keeping the A275L cooler for sustained amperage output.
• SAE J1171 Certified.
• Models available with internal/external voltage regulator.
• Proudly made in the U.S.A.