4018 - Arco Marine Zeus A225S Vortec Alternator w/Regulator

Zeus A225S Vortec Alternator with Regulator

The highest power output alternator in its size/class. 

Features:

• Engineered for High Energy Production.
• Suitable for Marine, RV, Military, and Commercial applications.
• Rapidly charges large battery banks.
• Coolest operating temperatures for increased performance. Runs 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. This translates to more amperage for sustained periods.
• For maximum performance or lithium battery charging, use an ARCO Zeus Bluetooth alternator regulator.
• SAE J1171 Certified.
• Proudly made in the U.S.A.

Technical Specifications:

• Voltage - 12v
• Field Type - P
• Rotor Poles - 16
• Stator Size - 130mm
• Frame Size - Small
• Weight - 12lbs/6.7kg
• Regulation - Internal/External
• 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, w/ 18mm ID x 29mm OD washer (Included)
• Diodes - 6 positive, 6 negative, 50A Rated, Avalanche
• Max Output (Cold, 9,000 RPM) - 254 Amps
• Sustained Cruising Output (Hot, 6,000 RPM) - 187 Amps
• Sustained Idle Output (Hot, 3,000 RPM) - 157 Amps

Mounting Application:

• Replaces Mando type alternators using Vortec/ GM pad mounting feet (Found on many Mercruiser and Volvo Penta 3.0GLM, 3.0GLP, 4.3GXi, 5.7GiL, 5.7GXiL Marine Engines.) (GM Blocks)

The ARCO Marine Zeus A225S Vortec Alternator with Regulator, part number 4018, is a permanent magnetic alternator designed for high energy production in demanding environments. This unit is suitable for marine, RV, military, and commercial applications where rapidly charging large battery banks is a priority. It features a 12v system with a default output voltage of 14.1v, capable of delivering 254 Amps maximum cold output at 9,000 RPM, and sustained hot outputs of 187 Amps at 6,000 RPM and 157 Amps at 3,000 RPM. The A225S is engineered to operate efficiently, running 8-20% cooler than comparable alternators due to heat-shedding coatings, an externally located rectifier, and dual cooling fans. This design aims to increase performance and reduce the reliance on a separate generator by optimizing power output, particularly at idle speeds. It replaces Mando type alternators utilizing Vortec/GM pad mounting feet, commonly found on specific Mercruiser and Volvo Penta marine engines (GM Blocks).