The Case-IH 87561117 Head Assy is a genuine OEM component designed for Case IH Magnum series tractors including models 250, 280, 310, 340, and 380. It is also compatible with New Holland T8 series tractors such as T8.300, T8.330, T8.360, T8.390, T8.420, T8.320, T8.350, T8.380, T8.410, and T8.435. This critical engine part ensures proper combustion and valve operation, maintaining the integrity and performance of your agricultural machinery. Built to exact specifications, it guarantees a precise fit and reliable function.