Dishwasher spray arm mount spare

Hi,

I’m trying to get hold of a new spray arm mount (the long thin bit the actual spray arm attaches onto and the water goes through) to clip on the underside of the top basket of my Diplomat ADP 8221 integrated dishwasher. There are a couple of numbers on the current part, namely PP-TD40 and 14880 0268

If anyone could provide any information as to where i could get a new one from i’d be very grateful. Failing that, any hints on which of the above numbers might be the part number, or even what the part is actually called would be very helpful!

Thanks,

Nick