The Rousseau 4400045 is a genuine OEM seal ring, also known as a 'joint spi', specifically designed to provide effective sealing in various Rousseau agricultural machinery components. Manufactured to precise specifications, this seal ring features an inner diameter of 45 mm, an outer diameter of 65 mm, and a thickness of 10 mm. It ensures reliable performance and helps prevent fluid leakage, maintaining the integrity and efficiency of mechanical systems in Rousseau equipment.