2003 Dodge Durango P56029124AB Engine Control Module ECM ECU, OEM.  Part numbers must match.  May need to be reprogrammed.  Buyer is responsible for any items that need reprogramming.  Unit has some cosmetic blemishes and light surface rust on case that will not affect function of unit.  Pins are in good condition.  Please look at all pictures and part numbers before purchase.  Please make sure the shipping address is correct before purchase.