Wheels and springs needed

Hello there!

I'm not sure we have a match for the latch pictured here. However, I have related a handful that are similar in design. Review the specifications and see if any match up to your old latch assembly. 

I don't recognize the part in your last photo, however. Can you show us a full view of it and describe the function? 

Unfortunately, we don't sell a replacement for the roller in your first photo. I am very sorry for the inconvenience.