The McCormick 4211191M91 is a genuine OEM electrical harness designed for a wide range of McCormick tractors. This essential component ensures reliable electrical connectivity throughout the machine, maintaining optimal performance and safety. It is compatible with McCormick X4, X5, X6, X7, and X8 series tractor models, including X4.20, X4.30, X4.40, X4.50, X4.60, X4.70, X4.80, X4.90, X5.20, X5.30, X5.40, X5.50, X5.60, X5.70, X5.80, X5.90, X6.420, X6.430, X6.440, X6.450, X6.460, X6.470, X6.480, X6.490, X7.440, X7.450, X7.460, X7.470, X7.480, X7.490, X7.650, X7.660, X7.670, X7.680, X7.690, X8.660, X8.670, X8.680, and X8.690 models. Using genuine McCormick parts like the 4211191M91 harness helps ensure proper fit, function, and longevity for your agricultural machinery.