New OEM Bosch 200 Amp Will replace the 90 Amp, 120 Amp and 150 Amp alternators without any modification.
To check the integrity of your
alternator pulley, simply remove the belt and place a screwdriver into
the front of the alternator cooling fan to stop the armature from
rotating. Then turn the pulley by hand. If it moves one direction but,
not the other, it is functional. If it will not rotate at all, it has
This is the identical alternator sold at a franchise Dodge or Freightliner dealership. No core deposit is required.