I'm on the print side of life, and if your client gives you a Pantone colour, then just leave it as Pantone. Different print machines have either 4/6/8print heads and will adjust as best fit, plus the printer will have pantone book and can match the colour.
You said you are "recolouring your CMYK to pantone"
The only way to do that onscreen is to use the colour books. Most people use Coated or UnCoated which will give you a Pantone number which I think you are trying to achieve..
The number you are quoting is a valid Pantone number but you are choosing the Pantone + CMYK and that is the numbers they assign. Choose Coated or Uncoated and you'll get the the code I think you are trying to achieve.