Window case crank and handle to close the window

I searched your website for crank replacement and found item# 39-187 in white that matches in my picture.

Just wanted your expert opinion if this is the right one for me according to the attached picture.

Also need to purchase handle that closes and locks the window shown in picture also, can you point me to the items numbers to purchase also.

Thanks,

Thanks Emily, I will look over the casement lock and order the cranks. John