buickanddeere
Super Member
B&D, I agree that for popular ploughs the parts will be available - for the same plough. DJ54 was asking whether parts were interchangeable. The JD 2 x 16" parts will not fit the 2x14". I assume you do have 16" ploughs in N. America. Nor will any other manufacturer's 2 x 14 parts fit the JD unless they are clones of the JD.
Rolling Coulters are easily interchangeable, even bottoms. On occasion at auction sales a plough will be found with both coulters and bottoms a different brand than the frame.
Years ago there used to be 12" framed ploughs. Quickly replaced with 14",16" and now 18" is sort of standard.