The Diagnostic 9 Pin Type 2 J 1939 Pig Tail Connector is a specialized automotive tool designed for diagnostic services. This connector is specifically designed for heavy duty trucks such as Volvo, Peterbilt, Kenworth + Cummins engines connecting to vehicles that use a 9 pin Type 2 J 1939 connection for diagnostic purposes. It provides a reliable and efficient way to interface with the vehicle's diagnostic system, allowing for accurate troubleshooting and maintenance. This product is a valuable asset for automotive professionals and enthusiasts looking to diagnose and fix issues with their vehicles.