19-21 SILVERADO 1500 5.3L PCM ECU ECM ENGINE COMPUTER 12711803 12711852 TESTED Climate Controls Service NO: 12616889 and Part

Service NO: 12616889 and Part Number: 12635821 - Please match both of these

7L3A-12A650-FAC

68059431AA

This cluster did not have its part number sticker on it

This style cluster does not have the PRNDL cable so make sure you are matching this set up

19-21 SILVERADO 1500 5.3L PCM ECU ECM ENGINE COMPUTER 12711803 12711852 TESTED Climate Controls Service NO: 12616889 and PartPart Number Service NO: 12711852 and Part Number: 12711803 Please match both of these! ECU has security and requires programming before installation. We offer FREE VIN programming so the ECU arrives and your vehicle will start once a key relearn process is completed. We will send instructions on how to complete this. During chekcout, be sure to put your VIN in the "notes to seller" field, otherwise we'll message after the purchase for your VIN. A