Not sure what would wear out on one of these, besides the striker bolt. In what area do you think yours is worn? I just cleaned the latch from the spare driver door that I'm installing and it seems to work like new now, and I don't see any significant wear on the locking or rotating parts. I used an ultrasonic cleaner but a good long soak in simple green or shorter soak in purple cleaner and going at it with various brushes should get it pretty good.