The McCormick 6528137M91 is a genuine OEM regulator specifically designed for a wide range of McCormick agricultural machinery. This critical component is compatible with various models across the CX, MC, MTX, XTX, and ZTX series, including CX100, CX105, CX110, CX115, CX50, CX60, CX70, CX75, CX80, CX85, CX90, CX95, MC100, MC105, MC110, MC115, MC120, MC130, MC135, MC80, MC90, MC95, MTX110, MTX120, MTX125, MTX135, MTX140, MTX150, MTX155, MTX165, MTX175, MTX185, MTX200, XTX185, XTX200, XTX215, ZTX230, ZTX260, and ZTX280. It ensures the proper regulation of the electrical system, contributing to the reliable operation and longevity of your equipment.