He must have one of the euro 1.4 liter tdi motors or something.
There are a lot of vw engines with the PD suffix. Year, country of origin, engine size and turbo or non turbo would be the only way to even get close to an answer.
OEM is never a bad idea. Most knowledge here pertains to US models so mostly we can point you in the right direction. A Dealership parts guy might be able to figure which model clutches will fit.