rancherman - 10/6/2024 12:47

I believe  that is a  'dot4'   or  354.4   perkins. 


Highly doubtful you'll find that  balancer assembly. 
I had the exact thing happen to my   3545  MF with the same engine about  4 yrs ago.. with zero luck finding a new one.    "No Longer Available". 


But,  I happened to find  www.damperdoctor.com out of Redding Cali.  that   rebuilds them.   
  He cleans them,  indexes them,  and  injects new rubber under vacuum to cure them.   Mine has several thousand hours on it, and still runs perfectly true.