Fits the following vehicles 2007-2011 Sentra with DCS171C Compressor 2007-2012 with DCS171C Compressor The compressor clutch is a large electromagnet that, when energized, attracts the clutch plate to the clutch pulley. The magnetic field holds the clutch plate firmly against the clutch pulley as long as current is supplied to it. This in turn engages the drive pulley on the compressor input shaft, which rotates the shaft. When the compressor clutch is not engaged, the compressor input shaft does not rotate and the drive pulley rides on a sealed bearing. color: black Material: metal Package Contents: 1 * Coil Only the above package content, other products are not included. Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3 cm.