Don’t quote me on this… but I might have found what you need:
https://www.aliexpress.us/item/3256803958451641.html?src=bing&aff_short_key=UneMJZVf&aff_platform=true&isdl=y&albch=shopping&acnt=135095331&isdl=y&albcp=555220768&albag=1309519513086509&slnk=&trgt=pla-2333644710812054&plac=&crea=81845026508678&netw=s&device=c&mtctp=e&msclkid=98adfb3eeab417e52bb39cb6df2c76e3&gatewayAdapt=glo2usa
It says that it’s for models 5000X, which should include 50004 (I think). Someone in the comments said it worked perfectly for their 50004. It’s less than $5.
Hope this helps! Have a great day and God bless!