Genuine OEM Audi Piston Rings Set, part number 06E198151H. These rings are vital components that seal the combustion chamber, preventing gas leakage, and regulate oil consumption by scraping excess oil from the cylinder walls. They are installed on the pistons within the engine's cylinders. The set weighs approximately 0.052 kg. Choosing genuine OEM piston rings ensures the correct material composition, precise tension, and exact dimensions for optimal engine compression, reduced oil consumption, and long-term engine reliability.