Genuine OEM Volkswagen Flywheel, part number 06D105317B. This component is a critical part of the engine assembly, providing the necessary rotational inertia to smooth out power pulses from the engine and ensure consistent operation. It serves as the mounting surface for the clutch assembly or torque converter. Genuine OEM flywheels are balanced to precise factory specifications to minimize engine vibration and protect drivetrain components from premature wear. Using a genuine part ensures the correct mass and structural integrity required for reliable engine performance.