With a quantity of eight pieces, the Lock Valve Spring R (t105,yp12 is the most used part in the 03 VALVE diagram.
The most reasonably priced component used on the Mt125 2016 Br33 Europe 1rbr3-300ek 03 Valve is the Seat, Valve Spring 2.
A sample from the products for the 03 Valve include: Valve, Intake, Seal, Valve Stem, Seat, Valve Spring 2, Nut (22f).