Product review (5 stars): Better replacement part than original motor coupler.
These replacement motor couplers are better than the couplers that were installed from the factory on my 16-year old Whirlpool Heavy Duty top load washing machine.  These have a metal reinforcement collar that was absent from the original couplers.  They did go in much tighter but I was easily able to set them in their proper position with a rubber mallet and a flathead screwdriver, tapping them gently around the metal collar to get them seated properly.  I'm very pleased with them and hopefully, I will get many more years of service out of the washer.