Product review (4 stars): Almost perfect replacement
This valve appears to be an exact replacement for the original.  As another reviewer noted, however, the screw hole was off by about 1/8" on my machine.  I used a drill bit as a router to elongate the slot in the washer's back a little (I know, wrong tool for the job, but it worked) and had it in and back together in less than 5 minutes.  Had the hole lined up, I would give it 5 stars, but it isn't a big deal to modify the slot, if you have a drill and bits (or a small round file).