Harddrive Regulator Black XL '78-81 OEM 74504-78 H0478 for Harley-Davidson

• Meet / Exceed Original Equipment specifications
• High Power and quality SCR (Silicon Controlled Rectifier) utilized to allow a cooler operation
• High temperature and environmentally protected (sealed) encapsulation
• High temperature – Late technology circuit board utilized on higher watt-density surface mount applications where heat issues are a major concern. This approach minimizes thermal impedance and conducts heat more effectively and efficiently than standard
• High temperate and voltage OEM grade wiring harness

Fits

• Harley-Davidson XLH1000 Sportster 1000: 1978-1981
• Harley-Davidson XLS1000 1000 Roadster: 1978-1981