Product review (5 stars): Perfect fit
This part was an exact replacement for PS334313 in my 10-year old Whirlpool dryer (LEQ9508PW0).  It was definitely a factory OEM part.  Total repair time was under 30 minutes, which includes removing the dryer hose, vacuuming, pulling off the back panel, more vacuuming, disconnecting the old coil set, installing the new one, and then putting it all back together.  I also installed a new thermostat (#3977767) since I had everything apart, and it was a cheap part.