Description:

Adjusting Unit For Intake Manifold for BMW 128i 328i 328i xDrive 328xi 330i 330xi 528i X3 Z4. Part No.: 11617560538, 11617522928. This is the smalller of the 2 DISA Valves on this motor it is considered the "Upper Disa valve". The lower DISA valve is part number 11617579114. OEM Replacement Part; Aftermarket Products.