This is a direct replacement for the A/C compressor on your 1996-2004 Mustang 4.6L 2V & 4V. This is a reman part (no core charge) and will bolt directly on to your Mustang. It will require no modification to fit.
A/C compressors will not be warrantied unless a new accumulator & liquid line are purchased at the same time.
A/C compressor is shipped dry & will require oil to be added before installing on your Mustang.