Got a NEXIQ USB-Link 2 or USB-Link 3 diagnostic scanner? This is the specific OBD2 adapter cable you need to connect it to your vehicle. It replaces the original part number 491113. The cable has the standard 16-pin J1962 connector on one end (that plugs into your car's OBD2 port under the dash) and the special DB-style connector on the other end for the NEXIQ tool. It's 40 inches long, which gives you enough slack to comfortably place the scanner on the seat or floor while you're working. This adapter is essential for using your NEXIQ device to read codes, run diagnostics, and program modules on a bunch of brands like Ford, GM, Dodge, Volvo, Isuzu, and Hino trucks. If your old cable is frayed, broken, or you just need a spare, this is a direct replacement that ensures a solid, stable connection for accurate scans. No complicated setup – just plug and play.