The Case IH 87391366 Diaphragm Kit is a genuine OEM replacement part specifically designed for various Case IH Axial-Flow combine models. This essential kit contains the necessary components to maintain or repair the diaphragm system, which is critical for the optimal operation and efficiency of the machinery. Manufactured to strict Case IH specifications, this diaphragm kit ensures a precise fit, high durability, and consistent performance across compatible models, including the 1440, 1688, 2388, and 7130 series combines.