Check the listing for details. 2007 Silverado Engine computer 12597121 "Programmed to your VIN" ECM PCM ECU. Condition: Remanufactured. Listed at 149.95 USD. ****This computer may require a theft deterrent relearn that must be performed with a programming scan tool through an online subscription with A.C.DelcoTDS before it will start the vehicle. A dealer or properly equipped repair shop can do this (charges will vary)**** This E.C.M. fits the following vehicles: 2007 4.8/5.3/6.0/6.2L Chevrolet Silverado (1500, 2500HD, 3500HD) This auction is for one service number 12597121 ECM (Engine control module) that is programmed for your vehicle using the latest software updates using your V.I.N. (Vehicle identification number) to exactly match your vehicle. After you purchase the E.C.M. you will need to provide us with your V.I.N so that we can program the E.C.M. before we ship it to you. This computer is refurbished and tested for functionality. There is no core charge you keep your old E.C.M. There is a one year replacement warranty. A crankshaft variation relearn will need to be performed once the vehicle is running. This will be evident if the check engine or service engine soon light comes on once the vehicle is running. You will need access to a scan tool capable of doing this procedure to do this and clear any related trouble codes (Code P0315). If this is not available to you a repair shop will have to perform this and clear the related trouble code. The vehicle will run normal but the ”service engine soon” light will come on and a trouble code will be stored until this is resolved. We will ship within one business day of payment. Same day shipping if ordered before 2:00 EST (Mon. - Fri.)