The Fiat 4305661 Alternator Brush Holder is a genuine OEM component designed for Fiat agricultural tractors. This essential part ensures proper function of the alternator, maintaining electrical system integrity. It is cross-referenced with Marelli 74965531 and fits numerous Fiat tractor models, including 450, 480, 500, 540, 550, 600, 640, 650, 750, 850, 950, 1000, and 1300. Weighing approximately 0.05 kg, this brush holder is manufactured to OEM specifications for reliable and long-lasting performance.