Kenworth KW45 Diesel Emission Components
- Walker Products®Nitrogen Oxide Sensor (1004-1082)Nitrogen Oxide Sensor (1004-1082) 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 gas...Valve gets stuck in the closed or open position due to a build-up of dirt, debris, or carbonClogged catalytic converter$499.20