Variable valve timing systems adjust camshaft phase angles in real time to optimise combustion across the rev range. The camshaft sprocket is the mechanical foundation of this process – the phaser unit that physically rotates the camshaft relative to the drive chain or belt, actuated by oil pressure routed through the VVT solenoid valve. A worn or failed sprocket cannot be corrected by adjusting the solenoid, resetting adaptation values, or replacing the chain. The fault is in the mechanical actuator itself.
HEPU® variable valve timing sprockets are manufactured to OE specification, covering major VVT platforms including BMW VANOS, VAG, PSA, Toyota VVT-i, and Ford Ti-VCT applications.
Use the HEPU® parts catalogue to find the correct VVT sprocket for your application.
