This is a Generic / Aftermarket Heavy Duty Cable with no markings or part numbers. Not made by Snap-on. Please make sure your scan tool is listed before you buy to make sure this cable works for you. Do not buy only based on looks as most test cables may externally look the same, but are internally wired different depending on scan tool model. Important: Cables are wear items. Many intermittent problems are a result of a worn cable. Keep a spare cable available to determine if an intermittent problem is from a worn cable and to use as a replacement. Properly dispose of damaged cables.