Originally Posted by C Sean Watts

some parts supply houses Germany I've been in touch with, there isn't. MAY have been a when and where made question. BUT, since the 240 nozzle design was new there have been FOUR design upgrades. The pilot hole (in the 240) was intended to quiet the diesel "clack" and it does by putting a minute droplet of fuel in just prior to the main charge.
The drawback is they tend to make more particle emissions (smoke) and lower fuel mileage.