That depends on the brand of door which can change repeatedly through any given production year. The only "reliable way to know" is to measure the lock and shop for locks with the same measurement.
The latest versions have (1) silicone rubber keypad instead of the vinyl overlay (mine dried out from the sun and flaked off so I'm buying a replacement silicone rubber keypad), and (2) new fobs are, I think, included but you'll want these instead of the old ones as the new ones use button type batteries and are easier to change them out: RVLock 4 Button Remote FOB
RV Lock told me the fobs go on sale TOMORROW so I'll be ordering 2 of them.