I have checked with the manufacture for the kneader bar for the Sunbeam model 5891 Bread Maker. And they assured me that the part number 113494-001-000
Kneader Bar is the correct one for this model. You may have been sent an incorrect part by mistake. If so, you will want to contact our Customer Service Center @ 866-802-6383 an explain your situation to them and they will be happy to take care of you.