C23971, C23633 Kohler MufflerAND Pipe for later Case Ingersoll 644. This muffler has not been available for a while, but we made it available now for you with our added touches to make it better. This will fit Case Ingersoll later, 644 Loaders and Backhoes, where the muffler is on the left side (Opposite of the carb).
 
PLEASE LOOK OVER THE PICTURES, AND MAKE SURE THIS IS THE CORRECT MUFFLER THAT YOU NEED. THIS MUFFLER FITS MOST KOHLER-POWERED 644 Loaders and back hoes after serial number 9731697. This muffler is made to our specs, heavier than the original design.These are quality handmade by skilled craftsmen in the USA replacement mufflers.
 
NOTE- If your muffler is on the right side if you are sitting in the seat and you have an early 644, you may need this C21977 Muffler HERE.
 
NOTE- If your 644 has a different style muffler this one can be used with a few things changed/modified to relocate it to the left side of machine but those changes and fabrication is up to you to design and build. .