56044776 - you must match this!

This ECU will require programming to your vehicle and is not plug and play. Make sure you have a tech lined up for programming prior to purchase.

This ecu will interchange or replace the following part numbers: 56044776. Please use the part number to verify fitment with your mechanic prior to purchasing if you are unsure this will work in your truck.

ECU has been tested with our state of the art vehicle simulator! Some of the circuits tested are listed below:
• ECU powers up and we can communicate via scan tool!
• All injector circuits in working order!
• 5 volt reference is good and more!

• Disconnect the negative terminal of the battery. Make sure the battery connector is not touching the battery post.
• Disconnect and remove the module to be replaced.
• Install and connect the replacement module.
• Connect the negative terminal of the battery.
• Programming is now required.

• Mounting points are all open and intact
• Connector pins are perfect, none are broken or bent

This ECU comes with a 3 month warranty from the date of purchase. Please keep a copy of your purchase record which we will send with your item.