The highest power output alternator in its size/class
• 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 need for generator by creating additional power with your engine.
• Unleash peak performance with E-Coat/Cerakote. Our advanced coating absorbs less heat, keeping the A275L 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: 138mm
• Frame Size: Large
• Weight: 14.9 lbs / 6.7 kg
• Regulation: Internal/External (IE) or External Only (EX)
• 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): 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
| Selected | SKU # | MFG # | Availability | Mounting | Regulation (Internal/External) | Regulator | Price | Quantity | |
|---|---|---|---|---|---|---|---|---|---|
| SKU #: 1044017 | MFG #: 4019 | 2 In Stock Ships immediately | 3.15” J180 | Ext. Only | Terminal Block | $1,096.70 | |||
| SKU #: 1046809 | MFG #: 4023 | 1 Remaining In Stock Ships immediately | 4” J180 | Ext. Only | Regulator | $1,096.70 | |||
| SKU #: 1046873 | MFG #: 4021 | 1 Remaining In Stock Ships immediately | 3.15” J180 | Ext. Only | Regulator | $1,096.70 | |||
| SKU #: 1046874 | MFG #: 4025 | 1 Remaining In Stock Ships immediately | 4” J180 | Int./Ext. | Regulator | $1,151.70 | |||
| SKU #: 1046875 | MFG #: 4030 | 2 In Stock Ships immediately | 1-2” Single Ft | Int./Ext. | Regulator | $1,151.70 |