Coolant Temperature Sensor for B4 Passat TDI with the 1Z engine code. Also replaces sensor with PN 6U0 919 501B in A3 Jetta with engine code AHU.
This sensor has a 4-pin, black connector. Ensure your vehicle has the 4-pin black connector before ordering. Comes with seal & clip (not shown).
If your vehicle has a 2-pin, blue connector please order this sensor instead.