14 15 DURAMAX 6.6L DIESEL ECU ECM ENGINE COMPUTER 12661603 FREE VIN PROGRAMMING Climate Controls 05094930AB

14 15 DURAMAX 6.6L DIESEL ECU ECM ENGINE COMPUTER 12661603 FREE VIN PROGRAMMING Climate Controls 05094930ABPart Number You must match match your part number and your serial number: 12661603 and 12658036 We can program the VIN into your ECM. You will need to complete a 30 minute key relearn and we'll send those instructions with your order. We do also recommend talking to your mechanic about getting the latest software updates from GM once the ECM is installed in your vehicle. Tech Notes ECM has been tested with by our experience techs. Some of these are

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