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Change the listing to include both part numbers and state it is a Mopar Performance TCM and it should sell. They have been discontinued for a long time.
Stock # 4D51
This is a good tcm or transmission computer for a 2006-2010 Dodge Charger or Magnum or Chrysler 300. The part # is PP5155179AA. It comes with a 90 day warranty. Make sure your part number matches before ordering. Computer may need to be reprogrammed to your vehicle. This part will only be plug and play on a SRT8 because it is coded for a 3.06 ratio differential. The 5.7 R/T cars had a 2.82. If this module is used in a 5.7 car, it will go into limp mode and not shift past 2nd because of the gear ratio error. A tuner could change the ratio to 2.82. otherwise it will only work in a SRT8.FREE SHIPPING IN THE UNITED STATES INCLUDING PUERTO RICO