This genuine OEM McCormick 6677590A1 spring is an essential component designed for various McCormick MC and MTX series tractors. Manufactured to original specifications, it provides critical tension and support for optimal system functionality. Confirmed fitment includes McCormick models such as MC100, MC105, MC115, MC120, MC130, MC135, MTX110, MTX120, MTX125, MTX135, MTX140, MTX150, MTX155, MTX165, MTX175, MTX185, and MTX200. The spring measures 95 mm in length, has an outer diameter of 51 mm, and a wire diameter of 7.5 mm, with a total weight of 0.12 kg.