The original Stihl carburetor (code 4137-120-0604) is an original spare part for Stihl SP 85 olive harvesters, Stihl FR 85, FS 75, FS 80, FS 85 brushcutters, Stihl HT 70, HT 75 pruners, Stihl FC 75, FC 85 trimmers and Stihl HL 75 hedge trimmers. The Stihl carburetor is used to prepare the mixture that will then be transferred to the combustion chamber. Efficient carburetor action ensures greater performance for the MN machine