Silverado 2005 4.3L Engine Computer ECM PCM 12589462 Programmed to your VIN #

  This was possible because each of these models received their specific programming from the factory.   In other words, you can't simply swap a used ECM from one vehicle to the next.   The item you receive will be of like finish guaranteed.** **Other info:** **Why buy your spare ECM from us?You will be purchasing a high quality used ECM.You get free Flash programming with every OBDII GM computer purchased. OBDII type computers have the “chip” embedded into the ECM and it is not removable.The calibration file per the application is “Flashed”, or reprogrammed using a software package and a pass through device.The “chip” is no longer removed for programming.Proper programming is essential when replacing an ECM whether it is a used ECM or a remanufactured ECM.A used GM computer will have the software installed that pertains to the original vehicle that it was removed from.In some cases GM OBDII type computers will interchange with many different vehicles including those with different engine and transmission configurations.However, unless the computer is programmed with the correct software it won’t function properly upon installation.We will flash reprogram any OBDII computer purchased from us with your specific VIN number for the latest updated calibrations straight from GM for a stock calibration.This is important to ensure specific vehicle programming and to guarantee flawless performance in your vehicle.

• Brand: Factory/OEM
• Other Part Number: 12602801
• Interchange Part Number: 590-7622, 12602801
• Manufacturer Warranty: 1 Year
• Fitment Type: Direct Replacement
• Manufacturer Part Number: 12589462