Genuine OEM Volkswagen Water Connection Sealing Ring, part number 03H121041. This ring provides a critical seal for various water connection points within the engine cooling system, preventing coolant leaks and maintaining system pressure. It is typically found where hoses or components connect to ensure a watertight seal. Made from durable rubber, this sealing ring weighs only 0.0011 kg and has an approximate outer diameter of 45mm. Using a genuine OEM sealing ring ensures the correct material composition and precise dimensions for a reliable, long-lasting seal, crucial for preventing coolant loss and engine overheating.

Catalogue entry: seal ring ×2.