Product review (3 stars): May or may not fit right out of the wrapper.
From reviewing the comments it appears there may be two production lines or something else squirrely going on.  The part either fits or it is too small;  as was the one I rec'd.  I swapped out the upper screw portion as discussed in other comments and am hoping for the best.  Also. the old part had some water discharge ports but in the new part these ports are located differently and are plugged.