Mercedes Oxygen Sensor - NTK 0005421400

Product Information

Your vehicle's oxygen sensor works with your engine control unit to optimize your engine's performance. The oxygen sensor is measure the proportion of oxygen in the exhaust sends input back to the engine control unit so it can modify the vehicle's air fuel ratio based off of it's current conditions. In doing so your Oxygen Sensor is a major part of your vehicle engine management and fuel consumption.

• Reduced fuel mileage
• Failed emissions testing
• A check engine light
• Poor drive-ability

About NTK

NTK is part of the NGK product family. Whereas NGK specializes in spark plugs, NTK specializes in O2 Sensors, also known as Oxygen Sensors. In fact NTK supplies more OEM oxygen sensors to automobile makers than any other manufacturer in the world. As an OEM, all NTK products are OEM certified and are designed with the highest quality materials, so all NTK oxygen sensors meet or surpass original equipment specifications. Also, all sensors now use waterproof factory fitted connectors so expect NTK sensors to fit perfectly the first time. Placing a new NTK oxygen sensor in your vehicle will help contribute to lower emissions, improved gas mileage, better engine performance, and extend the catalyst’s life.