Roll out kitchen window. Pull up/down mechanism broke

Your casement window lock reminds me of our 38-091 Multi-Point Sash Lock, the opposite handed version is the 38-092. Carefully look over the dimensions and compare them to your existing hardware to determine if this is the right fit for your window.

Be sure to take a look at the video tutorial tagged below as a reference for removing and installing broken lock levers if you happen to get stuck!

Dimensions for 38-091

Alternate view of 38-091