PCV valve diaphragm replacement

Hi, Looking at replacing the PCV valve diaphragm on the rocker/camshaft cover. Trying to find the correct part. Has anyone replaced this and can direct me to a supplier?

There appears to be a few different rocker covers fitted with different positions for PCV valve and possibly size of the diaphragm is different.

Any help much appreciated.

On my engine the PCV valve is in the middle of the rocker cover directly in line with the hose to the turbo output/inlet manifold pipe, not to one side or flat on top of the rocker cover.

Vehicle details:-

Octavia mk11, 1.6TDI CR, CAYC.

T

Edited 10 May, 20233 yr by CaverDave
Correcting text