Stens Inline Fuel Shutoff Valves promote better fuel efficiency while assisting in smoother engine operation. These valves manage how much fuel vapor goes into the combustion chamber and help release exhaust gases from the engine. Engine power is maximized for robust performance while working. with the release of gases, there is less potential for accumulation of harmful deposits inside the engine. While all intake fuel shutoff valves require periodic replacement, Stens uses premium quality materials that last longer under demanding conditions. Improved fuel efficiency helps you save money by reducing fuel costs while working. Stens manufactures these valves according to original equipment specifications for easier installation and optimal performance.