Coolant regulator.

Name Ext. inf. A* Use of Part number A
coolant regulator
4-cylinder+
diesel eng.
4-cylinder+
diesel eng.
(1) coolant regulator housing
with thermostat
1 03L 121 111 N  13
2 not for this model
7 o-ring
1 06B 121 119 B  4
8 hexagon socket head bolt with
shoulder
2 N  911 908 01  -
8 hexagon socket head bolt with
shoulder
2 N  909 450 02  -
* In the column 'A' indicates the number that is used in the selected vehicle.
To find out where to buy the item or equivalent, click on the part number.