Updated OEM Crankshaft Position Sensor for VQ40DE engines found in the Frontier, Xterra, and Pathfinder models. This newer style metal housing sensor is mounted in the rear of the oil pan to read the position of crankshaft by the notches on the flywheel.  This sensor is produced by the same manufacturer that builds it for Nissan.  

Note: This sensor does not come with an O-ring, and not necessary for installation.