The McCormick 3686694M91 strap is a genuine OEM replacement part designed for various McCormick tractor models. This essential holding strap ensures secure fastening of components, maintaining the integrity and operational safety of your agricultural machinery. It is compatible with McCormick X4, X5, X6, X7, and X8 series tractors, including specific models such as X4.20, X4.30, X4.40, X4.50, X5.20, X5.30, X5.40, X6.420, X6.430, X6.440, X7.440, X7.450, X7.460, X7.650, X7.660, X7.670, X7.680, X8.660, X8.670, and X8.680.