House sliding window parts

Thanks for reaching out! You won't be able to replace just the cam alone as it looks like it damaged the pivot shoe when it was removed, so you'll need to replace the entire shoe. Your pivot shoe looks like it could be the 15-046. Look over the dimensions and compare them to your existing hardware to determine if this is the right replacement.

Alternate image for 15-046

Detailed image of the pivot bar slot of the 15-046 pivot shoe.