The Case IH 87659135 is a genuine OEM auxiliary manifold supply tube designed for a wide range of Case IH, New Holland, and Steyr agricultural tractors. This essential component facilitates the proper transfer of hydraulic fluid within the auxiliary manifold system, crucial for the operation of various implements and functions. Manufactured to original equipment specifications, this supply tube ensures a precise fit, optimal system integrity, and long-lasting durability in demanding farm environments. It is a direct replacement for part number 87304381.