Hi guys, my brother got a hell of a deal on a 21 z500 knowing it needed an engine rebuild, only thing is that he's getting mixed info when he searches for parts, does anyone know if a 21 is a year of its own or are the engine internals all the same? I was under the impression they were the same 17-22 or 23? Any input is appreciated, thanks in advance and happy thanksgiving to all

[2015 Z Force 800 53/Trail EPS]

2016 is the first year of the ZForce 500 and as far as I know it remained unchanged, same engine on the same old chassis or as some like to refer to as the Gen-1 chassis to at least 2023. There are several places to get parts but I always start the look-up process with Alpha-sports. Old habits.

https://alpha-sports.com/cfmoto_parts.htm?q=cfmoto-parts-catalog