High-quality replacement alternator for Volvo Penta gasoline inboard and sterndrive engines. Suitable for a wide range of 3.0, 4.3, 5.0, and 5.7 liter models. Specifications Voltage: 12V Amperage: 75A Freewheel pulley: No Pulley diameter: 50 mm Ribs: 6 B+ connection: M8 Number of mounting holes: 2 OEM reference: 3884950