Camshaft and Crankshaft Speed/Position Sensor 871

[Waterloo]

Question, the Crankshaft and Camshaft Positioning/Speed Sensors, are they the same part on the CM-871? I am looking to replace the Crankshaft sensor down by the damper. I had no luck finding any sensors on Quickserve and called the dealer. My parts guy was surprised when he pulled up the part and said it was the same sensor for both applications? He gave me part number 4921599. Is this correct regarding this sensor being used in both locations? Thanks!