Vinyl windows were installed by previous owner, so I have no idea how old these are. This window has two spring loaded tabs to lock the window in place. The plastic tabs shattered on both sides.
Casey from SWISCO responded:
July 10, 2020
Hello,
Take a look at our 26-228 and 26-229 left and right-handed Mastic tilt latches. We've recommended these to replace your older latches in the past but make sure to compare the measurements to your part to confirm if they will work for you. Thank you!