3mirrors VVT Camshaft Actuator Solenoid Valve Kit — Pair for GM 2.0L–2.4L (Intake & Exhaust) with Oil Seals

These 3mirrors VVT intake and exhaust camshaft position actuator solenoid valves are a direct-fit replacement set designed to restore variable valve timing control on compatible GM 2.0L–2.4L engines.

If your Chevrolet, GMC, Buick, Pontiac or Saturn vehicle is showing VVT-related trouble codes (P0010–P0014) or running roughly, worn actuator solenoids are a common cause. This pair replaces OEM numbers 12655420 (intake) and 12655421 (exhaust) and fits a broad range of GM models including Equinox, Malibu, Cobalt, HHR, Terrain, G6 and Verano. The kit is sold as two complete camshaft actuator solenoid valves with oil seals, engineered to the original design to simplify installation and get you back on the road quickly.

How will these replacement solenoids affect my engine's performance?

Replacing failing VVT solenoids restores proper oil flow to the cam phasers so timing advances and retards as intended. Expect smoother idle, improved throttle response and reduced diagnostic codes once the solenoids and seals are installed.

• Restores variable valve timing control for intake and exhaust.
• Reduces rough idle and hesitation caused by stuck actuators.
• Helps clear or prevent P0010–P0014 trouble codes when solenoids are the root cause.

Which vehicles and part numbers are compatible with this kit?

This 3mirrors set fits many GM models from mid-2000s to mid-2010s that use 2.0L, 2.2L or 2.4L engines. It replaces common OEM reference numbers so you can match your vehicle’s original part numbers before ordering.

• Fits: Chevy Cobalt, Malibu, HHR, Equinox; Pontiac G6; Buick Verano; Saturn Aura; GMC Terrain and others — check fitment for your year/model.
• Intake reference: 12655420, 12628347, 12646783, 12578517, 12679099, 917215, 2T1014.
• Exhaust reference: 12655421, 12628348, 12646784, 12578518, 12679100, 917216, 2T1015.

What should I know about installation and troubleshooting?

Installation is straightforward for anyone comfortable with basic engine work and takes about 30 minutes for most DIYers. Before replacing solenoids, scan for OBD-II codes and inspect/clean the throttle body; some codes can be caused by deposit buildup or wiring issues instead of the solenoids themselves.

• Common diagnostic codes: P0010, P0011 (intake) and P0013, P0014 (exhaust).
• Includes oil seals to prevent leaks; replace both solenoids as a matched pair for best results.
• Simple bolt-and-plug replacement — basic hand tools required.

Who is this for?

This 3mirrors VVT actuator solenoid valve kit is aimed at DIY mechanics, independent repair shops and owners of compatible GM vehicles who want an OEM-design replacement without dealership pricing. If your vehicle exhibits VVT fault codes, rough idling or reduced responsiveness and you’ve confirmed model fitment, this paired intake and exhaust kit offers a quick, cost-effective repair option with included seals and straightforward installation.