Fitment:for Ram 4500 2011-2018OE Number:2897342Product Characteristics: The crankshaft position sensor detects engine speed, piston end position and firing cylinder end signals. Direct replace and install, convenient to use It is a good replacement for the old or broken one. Package included:1 Pc Crankshaft Position SensorNote:Please make sure your model's ENGINE and TRIM are as described before purchasing!