OE Part Number: 044121113|
Manufacturer's Part Number: 51177 / 4264.87D
Thermostat for A4, A3 chassis cars and B4 and B5.5 Passat TDI. Includes the O-ring seal. You may also want to order the thermostat housing as these frequently break when removed.
Made by Wahler. Please be advised that these thermostats do not have the locking tabs .