The Fendt 501963D1 is a genuine OEM O-ring, critical for sealing applications in various Fendt Vario series agricultural machinery. This high-quality Fendt part features an inner diameter of 19.6 mm and a cord diameter of 2.4 mm, manufactured to precise specifications for optimal hydraulic integrity and leak prevention. It ensures reliable performance across a wide range of demanding operating conditions for Fendt tractors.