The 6.0/6.4 Duralast Crankshaft Position Sensor works with 6.0L and 6.4L Power Stroke diesel engines. These engines run in Ford Super Duty trucks like the F-250 and F-350. The sensor tracks crankshaft position and speed. It controls engine timing and fuel injection. Duralast builds reliable, long-lasting parts. This sensor keeps the engine running smooth, strong, and efficient.