Valve for KOMATSU QSK23Reference4089090Engine applicationsKOMATSU QSK23 · KOMATSU 6D170Ematerial Grade21-4Nvalve Stem Material5CR9SI3valve Surface TreatmentGNOther references on this record40890906164-41-42116240-41-4210134474007180ValveBrowse this categoryBrowse this brand · KOMATSUKOMATSU