This pressure roller is suitable for Mutoh Rockhopper II 64" and 90" and Spitfire printers. This is the original Mutoh part (number DG-40577). This part replaces the pressure roller part number DF-40982. These are the second version of these rollers, the surface is different from the old version. One single roller cannot be changed, all rollers should be changed if going from one version to the other.