Zeus A275L High Output Alternator - Housing: 4" J180

Coolest operating temperatures for increased performance, durability, and service life. Runs 8 - 20% cooler than incumbent alternators.Engineered for high energy production.Suitable for marine, RV, military, and commercial applications.High-density, ultra-efficient stator winding produces maximum energy output.Rapidly charges large battery banks.Optimized for performance at idle speeds.Reduces the need for a generator by creating additional power with your engine.Dual fans provide more efficient cooling, which enables higher sustained output and increases the durability and lifespan of the unit.SAE J1171 Certified.Maximum ouput: 310 amps.Sustained idle output: 198 amps.Pulley: 49mm K6 (6 groove).12 volt.Housing: 4" J180.Applications: Replaces most Volvo Penta alternators using a 4" J180 saddle style mount.External only.Ground type: Isolated ground.