Product review (5 stars): Pretty easy. Just take your time replacing the ring ...
My 4 year old LG Washer Model # WM2650HWA gave me the dreaded "dE" error and so on YouTube I found instructions on replacing this part. Pretty easy. Just take your time replacing the ring that holds the door gasket in place, it's a tight fit.

Also, the part that came looked slightly different than the original part. The original part was light blue and black, the replacement part is gray and black. Works fine.