Genuine OEM Audi Coolant Flange Gasket, part number 038121688D. This gasket is designed to create a leak-proof seal between components of the coolant system, typically a coolant flange and an engine block or hose connection. Its precise shape and material are crucial for withstanding temperature fluctuations and coolant chemicals, preventing fluid loss and engine overheating. This orange gasket weighs 0.0015 kg. Using a genuine OEM gasket ensures the correct material composition and dimensional accuracy for a reliable, long-lasting seal in the demanding engine environment.