This unlock cable is designed for use with existing Insight CTS2's. If you have an existing Insight CTS2 (PN 84130), you will need to purchase the individual unlock cable (this product) and contact Edge to update your device, if you intend to unlock your 13-18 Cummins with an 84130. Contact Edge's tech team at 888.360.3343 to pay a $40 upgrade price and get the files for your current Insight to unlock your Cummins.