Mobilistics 9 Pin Deutsch to OBD2 Y Splitter Truck GPS Deutsch 9 Pin J1939 Type 1 to OBD2 (OBDII) T Splitter (Y adapter) for Trucks Mounts in existing 4 hole location All 9 pin leads pass through Quality Factory Grade Connectors Perfect for GPS tracker or other OBDII accessory devices. Fits Standard Type One 9 pin J1939.