This genuine McCormick 6677437A1 spring is an essential OEM replacement part, designed for optimal performance and durability in a wide range of McCormick agricultural machinery. It is compatible with numerous models including CX, MC, MTX, X60, X7, X8, X4, X5, and X6 series tractors, ensuring precise fitment and reliable operation. With a length of 95 mm, an outer diameter of 20 mm, and a wire diameter of 2.5 mm, this spring meets original specifications for maintaining proper tension and function within critical systems.