Genuine Nissan 23731-JA11B Crankshaft Position Sensor Genuine Oem:Yes, Category 2:Powertrain Control, Superseded Part Number:23731JA11A, Item Name:Engine Camshaft Position Sensor Brand:Nissan, Fitment Type:Direct Replacement, Other Part Number:23731JA11A, Part Ref# On Diagram:ONLY PART REFERENCE #4 ON THE DIAGRAM IS Manufacturer Part Number:23731JA11B, Category 3:Powertrain Control, Alternate Item Name:Engine Camshaft Position Sensor, Category 1:Electrical