Genuine BMW Eccentric Shaft N55 S55 Engine 11377589883

Genuine BMW valvetronic eccentric shaft P/N 11377589883

The valvetronic system can become faulty in older engines, a common symptom of this is a loud 'clicking' when you first unlock the car, reduced power is also another result of a faulty valvetronic system. In worst case scenarios the car will not start at all.

We recommend changing the valvetronic motor at the same time as this