This adapter converts a standard 16 pin OBD2 type plug to the Harley Davidson OBD 6Pin/4pin plug for plugging into your motorbike diagnostic socket. You can use it with a standard OBD2 diagnostic code reader (wired or wireless) for code reading, diagnostic data and resetting. Compatible with: (Examples) 6pin: 2011 and up Softail 2012 and up Dyna 2014 and up Touring Sportster and Street 500/750 models 4pin: 2001 - 2010 Softail 2001 - 2011 Dyna 2001 - 2013 Touring 2001 - 2013 Sportster 2002 - Present V-ROD Note: Installation guide not included, we strongly recommend you seek professional installation. Please check as much as possible to make sure the item is what you need. The product may be updated constantly ,Due To Different Batches, The Actual Product May Have Slight Differences Or Color Differences, Which Does Not Affect Use Colour:Black Material:ABS Package Contents: 1 x Diagnostic line Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.