This camshaft adjuster is designed for vehicles equipped with a 2.0L L4 engine and supports variable valve timing to optimize intake and exhaust cycles.It is compatible with select A3, A4, and TT models and functions as a direct replacement for OEM part numbers 06F109088J, 06F109088C, and 06F109088G.The unit installs without modifications or special tools and integrates easily into the engine compartment.Built with materials, it provides consistent performance over time and is intended for standard maintenance or replacement procedures.Includes one camshaft adjuster for single-unit installation in applicable engine configurations.