Silverado 2005 2006 2007 PCM ECM 12589463 4.8L 5.3L 6.0L Programmed to your VIN

**This listing is for one 12589463 PCM (aka ECM, ECU, Engine Computer) that will arrive at your door ready to install with the proper calibration programmed to your specific vehicle.** **Fits the following applications:** 2005                        Cadillac               Escalade                               5.3L V8 2005 - 2006             Cadillac               Escalade                               6.0L V8 2005 - 2006             Cadillac               Escalade  ESV                      6.0L V8 2005 - 2006            Chevrolet            Avalanche 1500                     5.3L V8 2005 - 2006            Chevrolet            Avalanche 1500                     5.3L V8 FLEX 2005 - 2006            Chevrolet            Silverado 1500                       5.3L V8 \*Does not fit the L33 engine application (8th digit of VIN = B) 2005 - 2006            Chevrolet            Silverado 1500                       5.3L V8 FLEX 2007                      Chevrolet            Silverado 1500 Classic          4.8L V8 2007                      Chevrolet            Silverado 1500 Classic          5.3L V8 2007                      Chevrolet            Silverado 1500 Classic          5.3L V8 FLEX 2007                      Chevrolet            Silverado 1500 Classic          6.0L V8 2005 - 2006           Chevrolet            Silverado 1500 HD                    6.0L V8 2007                      Chevrolet            Silverado 1500 HD Classic      6.0L V8 2005 - 2006           Chevrolet            Silverado 2500 HD                    6.0L V8 2007                      Chevrolet            Silverado 2500 HD Classic      6.0L V8 2005 - 2006           Chevrolet            Silverado 3500                           6.0L V8 2007                      Chevrolet            Silverado 3500 Classic             6.0L V8 2005 - 2006           Chevrolet            Suburban 1500                    5.3L V8 2005 - 2006           Chevrolet            Suburban 1500                    5.3L V8 FLEX 2005 - 2006           Chevrolet            Suburban 1500                    6.0L V8 2005 - 2006           Chevrolet            Suburban 2500                    6.0L V8 2005 - 2006           Chevrolet            Tahoe                                  4.8L V8 2005 - 2006           Chevrolet            Tahoe                                  5.3L V8 2005 - 2006           Chevrolet            Tahoe                                  5.3L V8 FLEX 2005 - 2006            GMC                   Sierra 1500                         5.3L V8 \*Does not fit the L33 engine application (8th digit of VIN = B) 2005 - 2006            GMC                   Sierra 1500                         5.3L V8 FLEX 2007                       GMC                   Sierra 1500 Classic                  4.8L V8 2007                       GMC                   Sierra 1500 Classic                  5.3L V8 2007                       GMC                   Sierra 1500 Classic                  5.3L V8 FLEX 2007                       GMC                   Sierra 1500 Classic                  6.0L V8 2005 - 2006            GMC                   Sierra 1500 HD                         6.0L V8 2007                       GMC                   Sierra 1500 HD Classic            6.0L V8 2005 - 2006            GMC                   Sierra 2500 HD                         6.0L V8 2007                       GMC                   Sierra 2500 HD Classic            6.0L V8 2005 - 2006           GMC                   Sierra 3500                              6.0L V8 2007                      GMC                   Sierra 3500 Classic                 6.0L V8 2005 - 2006            GMC                   Yukon                                      4.8L V8 2005 - 2006            GMC                   Yukon                                      5.3L V8 2005 - 2006            GMC                   Yukon                                      5.3L V8 FLEX 2005 - 2006            GMC                   Yukon  XL 1500                        5.3L V8 2005 - 2006            GMC                   Yukon  XL 1500                        5.3L V8 FLEX 2005 - 2006            GMC                   Yukon  XL 2500                        6.0L V8 2005                       HUMMER            H2                                           6.0L V8 2006                       HUMMER            H2                                           6.0L V8 2007                       HUMMER            H2                                           6.0L V8 **\*This unit will fit all 5.3L engine applications except the L33 engine which is identified by the 8th digit of the VIN as a letter B.** **\*\*Automatic and manual applications use the same computer but with specific programming.   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 PCM from one vehicle to the next.   We are a licensed user of the same GM software that a GM garage would use to reprogram and update your computer.   With your purchase we will reprogram the ECM, with the latest software updates available from GM, to your specific vehicle using your VIN (vehicle identification number).**** **\*\*\*\*\*\*This computer is used and was removed from a running salvaged vehicle.   This ECM comes with a** _**1 year**_**replacement guarantee****.   There are no delays.** **Other info:** Whether you are looking for a replacement ECM  or need a spare ECM for your LS1, LS6 or GEN III conversion we can help.All of our products are purchase out right.This means you will be able to keep your existing ECM and avoid any core charge.That’s right; there is no core charge **with this****listing****, no extra return shipping charges, and no waiting for a credit.****How can we do this when others can’t?****It’s simple; we specialize in a very small segment of the total replacement ECM business.****By doing this we can keep our cost down and pass the savings on to you.** **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. At the end of the listing you will need to provide us with your VIN number.** **The core charge alone for the 12589463 PCM from a GM Dealer will cost you more then our total purchase price.   There is no core charge with this listing.   This is a great opportunity to own a spare ECM.   Buy it now and save.** **\*\*\*\*\*\*View our e-bay store for more ecm's.** **Many different names have been given to the engine computer since its inception over 30 years ago.Engine computers may be referred to as ECU (engine control unit), ECM (engine control module), PCM (power train control module), Brain Box, ECC (engine control computer), VPCM (vehicle control module), or Fuel Management System.For clarification we refer to an engine control computer as an ECM.** **If you are looking for a 9354896, 09354896, or 16238212 ECM check out my other items.** **LS1 and Gen 3 engine families include 5.7, 5.7L, 4.8, 4.8L, 6.0, 6.0L, 5.3, 5.3L.** **\*The picture is a representative of the 12589463 in stock.  The item you receive will be of the same quality guaranteed.**

• Brand: Factory/OEM
• Other Part Number: 12589162
• Interchange Part Number: 12602802
• Silverado: 1500 2500 2500HD 3500
• Manufacturer Warranty: 1 Year
• Fitment Type: Direct Replacement
• Manufacturer Part Number: 12589463
• Sierra: 1500 2500 2500HD 3500