what other 2001 chrysler vehicles has the same eng as my 2001 pt cruiser2.4
None. That's is. The "cloud cars" (Cirrus, Breeze & Stratus) and the basic Caravan and Voyager share the basic block of the 4-cylinder, but all the add on parts (heads, intake, exhaust, accessories) are PT Cruiser specific to fit in and under the PT Cruiser body work (fenders & hood). Seriously, there are only maybe a dozen parts total that are shared between the PT Cruiser and any other Chrysler or Dodge (or defunct Plymouth) vehicle.
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Kelly Little Ashford