Pair of 2 Intake & Exhaust Camshaft Position Actuator Solenoid Valve for Buick Chevy Captiva Cobalt GGZ SZRH A-F A camshaft actuator solenoid is normally installed in the front of each cylinder head. It is used to precisely control the flow of oil into the camshaft actuator. This changes the rotation of the camshaft to adjust valve timing and valve overlap on the go. These solenoids are used to control both exhaust and intake camshafts. This precise control allows for improved engine power and fuel economy while maintaining emissions standards. These Solenoid Valves Fit for Buick: 2010 - 2015 LaCrosse, 2011 - 2015 Regal, 2012 - 2015 Verano; for Chevy: 2012 - 2015 Captiva Sport, 2006 - 2010 Cobalt, 2010 - 2015 Equinox, 2006 - 2011 HHR, 2008 - 2014 Malibu, 2012 - 2014 Orlando, 2014 Impala; for GMC: 2010 - 2015 Terrain; for Pontiac: 2007 - 2010 G5, 2006 - 2010 G6, 2006 - 2009 Solstice, 2006 Pursuit; for Saturn: 2007 - 2009 Aura, 2006 - 2007 Ion, 2007 - 2010 Sky / Vue with 2.0L, 2.2L or 2.4L engines. OE part numbers: Intake Solenoid - 12655420, 12628347, 12646783, 12578517, 12679099, 917215, 917-215, 2T1014; Exhaust Solenoid - 12655421, 12628348, 12646784, 12578518, 12679100, 917216, 917-216, 2T1015. Please check OEM replacement numbers before ordering. If your vehicle is displaying a Check Engine Light for codes P0010 (intake side circuit malfunction), P0011 (intake side actuator solenoid timing over-advanced), P0013 (exhaust side circuit malfunction), or P0014 (exhaust side actuator solenoid timing over-advanced), these actuator solenoid valves may resolve the issue and restore vehicle performance. Each camshaft position solenoid actuator is built to the same specifications as factory actuators. It is an OEM replacement part and a direct fit for your intake and exhaust camshaft position actuator solenoid valve. It looks, fits, and functions like a dealer part, offering reliable performance at a lower cost. Each actuator is made with precision-machined components for dependable operation.