I am not saying all aftermarket seats will be a problem or would be a problem for most people but I put one in a few years ago and it never sat comfortable to me. A heavier person with more padding on their backside probably would have never noticed it but I ended up getting a new seat from JD. Like one other poster mention you need to buy the kit that contains the seat and back if it is still available that way as it was a good bit less than the two pieces combined.