This Cummins 4984760 Mass Airflow Sensor for the 2007.5 to 2019 versions of the Dodge Ram trucks with the 6.7L Cummins diesel engines. This OEM Cummins Sensor is located on the airbox to measure how much airflow is coming into the engine. This Sensor is one of the three different engine sensors located on the 6.7lL Cummins inlet air system. Please make sure this is the correct sensor you need before ordering. Engine Sensors are an electrical component, and they are a NonReturnable item.
Your Cummins Turbo diesel engine uses a Mass AirFlow Sensor (MAF) sensor to determine volumetric changes in the intake air stream. Intake System
A mass airflow sensor (MAS) measures the mass of air entering the engine. This reading is then used by the ECU to determine the optimum rate of fuel to be delivered by the fuel injection system. The air mass information is necessary for the ECU to correctly balance and deliver the correct amount of fuel to the engine. These airflow rate changes are used to indicate engine load, boost, operational elevation, and other pressure variables that enable your ECU to make necessary changes so your diesel can run at peak performance. If your Dodge Ram 6.7L Cummins Turbo Diesel truck is experiencing decreased engine performance, it could be the Mass Airflow Sensor. The 6.7L Cummins diesel engine also uses an IAT Intake Air Temperature Sensor and Manifold Absolute Pressure Sensor for proper engine operation. Please make sure you are ordering the correct sensor for the trouble code you are trying to fix.
When your engines mass airflow sensor is faulty or defective it causes a variety of problems, and usually results in very degraded engine performance.
NOTE: Before you replace the Mass Airflow sensor, check the all of the connections and grounds first to see that are good and clean. This OEM Cummins Engine Sensors are an electrical component, and they are a NonReturnable item.