Optimize your marine power system with the ARCO Marine Zeus High Output Alternator A275L, featuring a versatile 1"-2" mounting configuration and integrated regulator. The A275L-12-SF12-IE-49K6 model provides consistent and efficient power output, ensuring your boat's electrical systems remain reliable and steady under varying conditions. Built for marine-grade durability and performance, this alternator is ideal for boat owners looking for a robust and long-lasting power solution to enhance their marine adventures.
- Engineered for High Energy Production.
- Optimized for performance at idle speeds.
- Rapidly charges large battery banks.
- High-density, ultra-efficient stator winding produces maximum energy output.
- 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
- Unleash peak performance with E-Coat/ Cerakote. Our advanced coating dissipates heat, keeping the A275L cooler. This translates to more amperage for
sustained periods. - For maximum performance or lithium battery charging, use an ARCO Zeus Alternator Regulator.
- SAE J1171 Certified.
California Proposition 65: WARNING Cancer. www.P65Warnings.ca.gov
Specifications:
| Field Type | P |
| Rotor Poles | 16 |
| Stator Size | 138mm |
| Regulation | Internal/External (IE) or External Only (EX) |
| Output Voltage | 14.1V (default) |
| Cut-In Alt. RPM | 1,061 |
| Maximum Alt RPM | 19,000 |
| Battery Post | M8 Thread Post, Side Mount |
| Standard Pulley | 49K6 (6-groove, 49mm); 50mm Clutch Pulley (Optional) |
| 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) | 310 Amps |
| Sustained Cruising Output (Hot, 6,000 RPM) | 235 Amps |
| Sustained Idle Output (Hot, 3,000 RPM) | 198 Amps |
| Max Continuous Operating Temperature | 110°C/230°F |
| Housing | 3.15" J180 |
| Dimensions (LxWxH) | 6.8" x 8.5" x 5.6" |
