https://www.sis.se/en/produkter/road-vehicles-engineering/road-vehicle-systems/electrical-and-electronic-equipment/ssiso7651/
Standard - Commercial vehicles and buses - Mounting dimensions for alternators of types 1, 2 and 3...
Commercial vehicles and buses - Mounting dimensions for alternators of types 1, 2 and 3 - SS-ISO 7651
commercial vehicles and buses