ARCO Zeus A225 Small High Output Alternator

The Highest Power Output Alternator in Its Class - High Output / High Amperage Alternator

• Engineered for high energy production.
• Suitable for marine, RV, military, and commercial applications.
• Rapidly charges large battery banks.

• Coolest operating temperatures for increased performance, running 8-20% cooler than incumbent alternators due to:

  • 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. Our advanced coating absorbs less heat, keeping the A225S cooler for sustained amperage output.

• For maximum performance or lithium battery charging, use the ARCO Zeus Bluetooth Alternator Regulator.

• SAE J1171 Certified.
• Models available with internal/external voltage regulator.
• Proudly made in the U.S.A.

Here’s a concise comparison of the DF315, DF4, and SF12 ARCO Zeus alternator mounting configurations:

• DF315 is ideal for Yanmar-style brackets.
• DF315R is ideal for Yanmar-style brackets. R = Rear Battery Post 
• DF4 is suited for larger, more robust engine frames.
• SF12 offers the most flexibility and is often used in retrofits or tight spaces.