How find part number of heat blower which i need?

Hey i live in germany, and our repair guy says it would be the heat blower, but he cant order it anymore.
(he already tried another part and says it must be the blower)

He cant give me a part number why ever, and i looked inside made some photos and see no number on it just the short one.

It's Chevrolet Spark B.= 05.12 2.1=8265 2.2=AAT000055 6.= 10.11

I looked bunch online but i see two difference, one mine has black cable (for the heat?) and two, mine looks buch longer. And i dont have much experience with these kind of things, hope you can help me out

Thanks