Genuine OEM Audi Oil Pump Sprocket, part number 06B115121. This essential component is part of the engine's oil pump assembly, responsible for driving the pump mechanism to circulate engine oil. It ensures consistent lubrication of vital engine components, preventing wear and heat buildup. The sprocket is typically made from hardened steel for durability and precise tooth engagement. Genuine OEM sprockets are manufactured to exact tolerances, ensuring proper chain fitment and reliable, long-lasting operation within the engine's demanding environment.