Throttle adjustment spring for lawn tractor mower mower ORIGINAL LONCIN For models: LONCIN G 240 F , G 240 FD , G 270 F , G 270 FD , G 340 F , G 340 FD , G 390 F , G 390 FD , G 420 F , G 420 FD , LC 175 FDS , LC 185 FDS , LC 190 FDS Code: 55800038 Original part number: 171610001-0001 171610001 ah m