Evan Petr2003 Posted December 16, 2020 I was wondering if a 2003 cylinder will fit on a 2002 rm125? Share this post Link to post Share on other sites
KnotAPro Posted December 17, 2020 take a look at Partzilla.com. the answer or word terminology is known as "fitment". the biggest difference is the components of the Power Valve Assembly. in 2003 there were changes made. if the 2002 exhaust valves will slide in and out of the ports then I believe you can use the 2003 Cylinder will work. I personally own a 2002 RM125. Share this post Link to post Share on other sites