Lambda For BENELLI TNT 125 135 150 150i Leoncino 125 RFS 150 31902V020000 Engine Parts TNT125 TNT135 TNT150 TNT150i Leoncino125 RFS150 thread; fits wiring connector Pre threaded probe body; direct twist on installation without pipe or wiring Delivers signal to ; stabilizes fuel ratio; fixes rough idle weak acceleration Adopts dense internal sensing chip; solid outer shell continuous temperature riding vibration Standard OEM matching probe length thread size; compact structure fits narrow mounting space