Item Description: Vehicle Fitment For 1997-2006 Ford F-150 4.2L 4.6L 5.4L For 2004 Ford F-150 Heritage 4.2L Note: The three main parts of the compressor clutch assembly are the coil magnet, the pulley, and the clutch plate. The clutch drive plate is splined to the input shaft of the compressor. The compressor clutch is a large electromagnet that, when energized, draws the clutch plate into the clutch pulley. The magnetic field holds the clutch plate tightly against the clutch pulley as long as current is supplied to it. .
