2021 Kenworth KW45 Diesel Emission Components
- Walker Products®Nitrogen Oxide SensorKenworth KW45 2021, Nitrogen Oxide Sensor by Walker Products®. Position: Upstream. The Exhaust Gas Recirculation Valve, also referred to as EGR, meters the exhaust gas that is being recirculated into the intake manifold. This exhaust...Valve gets stuck in the closed or open position due to a build-up of dirt, debris, or carbonClogged catalytic converter$499.20