From what I have heard in the past, it sounds like aftermarket people are easier to work with when it comes to warranties than the OEMs. From what I hear, OEMs, if you are an hour over warranty date, forget trying to talk to them. Usually aftermarket people will listen and try and work with problems long after warranty is over and if a product problem, will still come through at some extent for a fair settlement. OEM parts warranty usually 90 days, aftermarket parts usual warranty 1 year. Aftermarket people have to work harder for their product than the OEMs, as their goal is to build market share. My guess is fighting the huge OEMs for market share is like fighting city hall, as they own a global market, and have the bucks to control, and have the clout_following similar to a salesman selling freezers to Eskimos, combine owners thinking, whatever OEMs make and supply must be the best.