Overview The Renault Mégane II 2.0 Cam Dephaser Pulley is a crucial component in the variable valve timing (VVT) system of the 2.0L petrol engine (commonly the F4R engine). This system is designed to improve engine performance, fuel efficiency, and emissions by adjusting the timing of the camshaft relative to the crankshaft. The dephaser pulley allows the camshaft to rotate …