Fuel Line Stem: 3/16"; Case length: 33mm; Outside Diameter: 18mm
According to the original factory specifications; Perfect match for the original machine.
Compatible with:Fit for Zama C1M-S237; Fit for Stihl FS40 FS50 FS50C FS56 string trimmer; Fit for FC56 edger; Fit for HT56 HT56C pole pruner; Fit for KN56 KN56RC KM56 KM56C Kombi motor
This Is Aftermarket Replacement Item But Not Genuine.