Wells 3T1025 Variable Valve Timing VVT Sprocket

The Wells 3T1025 is a Variable Valve Timing (VVT) Sprocket—also known as a VVT actuator or cam phaser—featuring a toothed wheel mounted on the camshaft. This component receives oil pressure from the VVT solenoid, allowing the actuator to advance or retard camshaft timing for precise control of intake and exhaust valve operation. These adjustments help decrease vehicle emissions and improve fuel economy by optimizing combustion chamber airflow.

Key Features:

• Engineered and thermal-shock tested to match OE parts in fit, form and function
• Designed for installation on the end of intake and exhaust camshafts
• Precision-manufactured by Wells Vehicle Electronics, a leading supplier of engine management components
• Direct replacement for worn or failed factory VVT sprockets

Signs that a VVT sprocket may need replacement include loud rattling or clattering sounds, especially when the vehicle first starts. The Wells 3T1025 provides reliable OE-quality performance to restore proper variable valve timing operation and engine efficiency.