https://leadersrpmshop.com/can-am-ne...nel-708400238/

Access Panels are part #708400238/239 for Left/Right sides. Look at the parts diagram... you'll see the twist-lock listed as a seperate part. I just bought 2 access panels, and neither came with the locks. They do ineed have their own part number.

And as other said, they snap in/out. You just need to make sure the locks are turned so the tabs and keyways line up (look on the underside of the panel and the lock)