Ensure reliable power for your marine vessel with the ARCO Marine Zeus High Output Alternator A275L Vortec, equipped with an integrated regulator for precise voltage control. Designed for efficiency and durability, the A275L-12-VT-IE-49K6 model delivers consistent performance, keeping your boat's electrical systems running smoothly even in challenging marine environments. Ideal for boaters looking to enhance their power setup, this alternator provides dependable performance and longevity for uninterrupted 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.
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" |
