For Ford Explorer 2012-2013 L4 2.0L Sport Utility With 7SBH17C Compressor. Pulley Groove Quantity: 6. For Ford Edge 2012-2015 L4 2.0L Sport Utility With 7SBH17C Compressor. The three main parts of the compressor clutch assembly are the coil magnet, the pulley, and the clutch plate.