An extra part inside the dishwasher

I have a Bosch dishwasher with the same "mystery" part. According to my manual,this part is an Extra Tall Item Sprinkler (select models). Apparently, if you are loading in extra tall items, you take out the top rack and insert this part into the top rack spray outlet (located a the back of the dishwasher). Turn it clockwise to lock it into position. Put your extra tall items in the bottom rack. Hope this helps!

It a "Baking Sheet spray Head, Take the top shelf out of the dishwasher and fix it on the back of the inside of the washer, on the circular male fitting, between the two protruding bits and rotate to secure.

For cleaning large Pasta plates etc

Per page 27 of Bosch 9000 530 626 (9002) manual

It goes in place of the upper dish rack arm.  the arm is removed and this part is attached to the water inlet at the back.
Can someone suggest a reason to use it?

We found that part inside ours. it twist snaps on to the water out let at the back of the unit where the top sprayer arm normally connects. although we cannot find a reference in the manual, it looks like it is for cases where you want to remove the top rack to wash a tall item.

The reference refers to the actual material the parts are made from, not the part number.
It is a talc filled (20%) co-polymer polypropylene produced for injection moulder by pal plast GmbH in Germany.

I just found the same part in a "junk" drawer. Seems pretty useless unless you are washing the kitchen sink. Mine is a Bosch part---they should stick to making stereos!

Hi all. I just found the same part. It appears to fit to the inside roof of my Beko dishwasher - not at the back as others are suggesting. See photo.