Product review (4 stars): Does the job!
Bought the kit to fix a Maytag portable washer, which uses the same coupling btw.  Worked great!  The only reason I didn't give it a 5 stars is that it's not white (my coupler is white) and the round section that plunges down is not the same shape as my original, which was elongated, giving an easier grip to push the plunger down.  But otherwise awesome product, highly recommend trying to fix your existing coupler before plunking some serious money to get a new coupler and hoses.