The McCormick 6516393M1 is a genuine OEM gear designed for various McCormick X4, X5, X6, X7, and X8 series tractors. This essential component ensures precise and reliable power transmission within the machinery. Manufactured to original equipment specifications, it guarantees optimal performance and durability, maintaining the integrity of your tractor's drivetrain system. With an outer diameter of 110 mm, an inner diameter of 50 mm, and a thickness of 20 mm, this gear is a direct replacement part.