The McCormick 3657996M1 is an authentic OEM gearbox housing designed for a range of McCormick tractor models, including the CX100, CX105, CX110, CX110LP, CX50, CX60, CX70, CX75, CX80, CX85, CX90, and CX95. This critical component ensures the proper enclosure and protection of internal gearbox mechanisms, maintaining optimal performance and longevity of the transmission system. Manufactured to McCormick's stringent quality standards, it guarantees a direct fit and reliable operation.