^^^ Not sure i understand, but maybe the OP will chime in... The IP has a timing belt that runs to the cam shaft, so it needs to be a toothed belt.
OP...
Try also to cross reference the Toyota OEM number with the Denso one, i use their website for Europe or Aussie land. I found more options online for the alternator using the Denso part number....hope that helps
RB
