Feature:This diagnostic scan adapter perform basic vehicle diagnostics and troubleshoot vehicle failures.This truck diagnostic adapter is suitable for male to female J1939 OBD2 9 pin vehicles, diesel engines etc. Made of durable materials, not easy to break, flame retardant, stable performance, wear-resistant and corrosion-resistant. Good replacement for the old or broken one.Please allow 3-5mm differences due to manual measurement. Specification:Condition:NewType:Security Gateway Harness BypassMale Pin Number: 9Color: Black, GreenMaterial: PlasticSize: 8x4.7x2.7cm / 3.15"x1.85"x1.06"Package Included:1 Pcs Diagnostic Connector.