The McCormick 4212015M91 is a genuine OEM replacement strap designed for various McCormick X-Series tractors. This essential component ensures proper function and secure fastening within the machine's system, maintaining original equipment performance and durability across models including the X4.20, X4.30, X4.40, X4.50, X5.20, X5.30, X5.40, X5.50, 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.