Product review (5 stars): LG Washer Cold Water Inlet Valve
This is a very simple do it yourself project.  All you need is a phillips head screw driver, pliers, and about 20 minutes.  This is a direct replacement part.  Shipping was super fast, I got the part within 2 days or so of ordering even with standard shipping.  It was also one of the best prices I could find for the part.  I am very satisfied with this purchase.