The McCormick 3665705M1 JAW is a genuine OEM replacement part designed for various McCormick tractor models. This essential component ensures proper function and fitment within the specified machinery, covering CX series (CX100, CX105, CX110, CX115, CX50, CX60, CX70, CX75, CX80, CX85, CX90, CX95), MC series (MC100, MC105, MC110, MC115, MC120, MC130, MC135, MC80, MC90, MC95), MTX series (MTX110, MTX120, MTX125, MTX135, MTX140, MTX150, MTX155, MTX165, MTX175, MTX185, MTX200), X50 series (X50.20, X50.30, X50.40, X50.50), X5 series (X5.20, X5.30, X5.40, X5.50), X60 series (X60.20, X60.30, X60.40, X60.50), X7 series (X7.440, X7.450, X7.460, X7.650, X7.660, X7.670, X7.680, X7.690), X70 series (X70.40, X70.50, X70.60, X70.70, X70.80), and X8 series (X8.660, X8.670, X8.680).