This genuine McCormick 3693870M91 Headlight Assembly is a 12V H4 work light designed for agricultural tractors. It functions as a front left or right headlight, providing essential illumination for safe operation in various conditions. This robust assembly is compatible with McCormick X Series models (X4, X5, X6, X7), a wide range of Massey Ferguson 3600, 4700, 5700, 6700, 7700, and 8700 series tractors, and Landini 4, 5, 6, and 7 Series. Its precise dimensions of 170mm length, 100mm height, and 90mm width ensure a proper fit and reliable performance.