C20109/C32131 Muffler for all 648 loader/648 backhoe and later 646 loader/646 Backhoe models AFTER serial number 9698983. ALSO for 6018 that have ONAN engine only. Not Kohler or Honda.
 
If you need a muffler for a 646 BEFORE 968983 serial number then click here C18121  for the early 656 mufflers.
 
PLEASE LOOK OVER PICTURES, MAKE SURE THIS IS THE CORRECT MUFFLER THAT YOU NEED. THIS MUFFLER FITS MANY ONAN POWERED 600, 6000 SERIES MACHINES. (See pictures)
 
These are quality handmade by skilled craftsmen in the USA replacement mufflers.