The McCormick 3665657M91 is a genuine OEM return hose designed for various McCormick X series tractors. This essential component ensures proper fluid return within the hydraulic or cooling system, maintaining optimal machine performance and preventing leaks. Manufactured to McCormick's stringent quality standards, it offers durability and precise fitment for models including X10.20, X10.30, X10.40, X10.50, X20.20, X20.30, X20.40, X20.50, X30.20, X30.30, X30.40, X30.50, X40.20, X40.30, X40.40, X40.50, X50.20, X50.30, X50.40, X50.50, X60.20, X60.30, X60.40, and X60.50. Weighing 0.12 kg with dimensions of 95mm length, 51mm width, and 51mm height, this hose is a critical replacement part for maintaining your equipment's reliability.