The McCormick 3541278M91 is a genuine OEM gear reducer designed for various McCormick agricultural tractors. This critical component ensures efficient power transmission within the machine's drivetrain. It is compatible with McCormick MC series models including MC95, MC105, MC115, MC120, MC135, and MTX series models such as MTX110, MTX125, MTX140, MTX155, MTX175, MTX185, and MTX200. This original part guarantees proper fit and reliable performance for maintaining your McCormick machinery.