DDJ-XP2 Replacement Knob, Selector (DAA1384)

Hi, 

The  track selector rotarry knob on my DDJ-XP2, part# (DAA1384) just broke off and I can't seem to find a replacement anywhere on line.   I can find the rotary knob for several other devices however.  Since I can't find this one in particular,  I was wondering if this knob is compatible/interchangeable  with the knob of any other mixer or controller, might give me a better chance of finding one.  Thanks