This 2-in-1 OBD2 diagnostic adapter cable is the ultimate professional solution for H-arley Davidson owners and mechanics. It uniquely combines both 4-pin and 6-pin connectors in a single cable, providing extensive coverage for a wide range of Harley models from 2001 to present-day vehicles. The 4-pin connector handles select Touring, Softail, Dyna, and Sportster models from 2001-2013, while the 6-pin connector is designed for modern 2011-Present Softail, Dyna, Touring, Sportster, Street, and Trike models (please note exclusion for 2001-2003 carbureted models). Supporting both CAN bus and J1850 protocols (not compatible with K-Line), this adapter enables you to read and clear fault codes and, when used with a compatible scanner and the RPMitUP app, access and monitor real-time engine data like RPM, temperature, and gear position. Its robust construction ensures reliable performance, while the plug-and-play design makes advanced diagnostics accessible to everyone. This all-in-one cable offers a cost-effective and convenient alternative to purchasing multiple single-purpose adapters.