Hello, I have a STIHL KM56R KOMBI powerhead for sale. This unit has been rebuilt, and is basically new again...and is actually still in its break-in period! It has a new cylinder/piston, carburetor, spark plug, air filter, fuel lines, and fuel filter. The carb has been tuned, and the unit runs strong...as it should since it's basically new. This powerhead was only used as a backup unit, as can be seen by it's very clean appearance. This powerhead is a great way to get into the Stihl kombi attachement line, and the $100 you will save can go towards buying your first attachement.