I've found the following locally:
KT4Z-15A-449-A
The question now is the difference between KT4Z-15A-449-A and KT4Z-15A-449-B.
I know 448 is for the passenger side, 449 is for driver side. But i'm not sure about the last letter - A or B. It seems version with "A" is hard to find and 99% of searches give part numbers with "B" at the end.
Visually, on the photos, both looks the same.