Product review (4 stars): Factory Replacement Parts
Received genuine replacement parts and worked perfectly.  My only frustration is with Whirlpool not the vendor.  I ended up only needing to replace one board - the small IR transmitter.  This is literally about $4 worth of parts and 2 components.  Had I known what I was doing I probably could have replaced the resistor and IR led on board myself for pocket change.  Oh well.  Still far cheaper than service call.