Pardew marked his one-year anniversary as Palace boss with a 3-0 defeat to Chelsea on Sunday but the loss was a small blot on an otherwise remarkable 12 months.
McArthur admits the former Newcastle boss does not get the credit he deserves in England but is happy for that to remain the case if it means he stays at Selhurst Park.
"He's been unbelievable," McArthur said.
"To come in when the club were in a relegation battle, and not looking great to be honest, he's turned it around and made a really good side.
"He probably doesn't get the credit he deserves but that's probably a good thing for Crystal Palace.
"We don't want him to get too much credit and start getting linked with big jobs.
"I'm not really concerned about that because he's a great manager for Crystal Palace and we want him to stay here as long as he can."