The McCormick 6637655A1 injector is a genuine replacement part designed for optimal fuel delivery in McCormick C, CX, MC, MTX, and XTX series agricultural tractors. This essential component ensures precise fuel atomization for efficient engine performance and reduced emissions across various models including C100, C105, C110, C50, C60, C70, C80, C90, CX100, CX105, CX110, CX50, CX60, CX70, CX75, CX80, CX85, CX90, CX95, MC100, MC105, MC115, MC120, MC130, MC135, MC80, MC90, MC95, MTX110, MTX120, MTX125, MTX135, MTX140, MTX150, MTX155, MTX165, MTX175, MTX185, MTX200, XTX185, XTX200, and XTX215.