HIFROM TM Oil Pump Worm Drive Gear Spring For 029 039 MS290 MS310 MS390 CHAINSAW NEW New high quality aftermaket replacement parts Fit for chainsaw models 029 MS290 039 MS390 MS310 PACKAGE Included: 1PC OIL PUMP,1PC WORM GEAR,1PC SPRING,1PC FUEL LINE,1PC FUEL FILTER,1PC OIL LINE,1PC OIL FILTER