Genuine OEM Volkswagen Timing Chain Tensioner Arm, part number 06M109509M. This crucial engine component is designed to help maintain proper tension and guide the timing chain within the engine's timing assembly. It ensures the timing chain operates smoothly and precisely, which is vital for correct valve timing and overall engine performance. Constructed from durable metal with a specialized wear surface, it measures approximately 0.244 meters in length and weighs 0.246 kg. Choosing a genuine OEM timing chain tensioner arm ensures factory-specified tolerances and material quality, preventing premature wear and potential catastrophic engine damage.