The McCormick 3647895M1 shaft is a genuine OEM component designed for various McCormick X6, X7, and X8 series tractors. This critical part ensures efficient and reliable power transmission within the machinery. Manufactured to McCormick's stringent specifications, it provides optimal performance and durability. Confirmed fitment includes models such as X6.420, X6.430, X6.440, X7.440, X7.450, X7.460, X7.650, X7.660, X7.670, X7.680, X7.690, X8.660, X8.670, X8.680, and X8.690.