Genuine OEM Audi Fuel Tank Cap Seal, part number 1K0201557A. This rubber O-ring is specifically designed to provide a tight seal for the fuel tank cap, preventing fuel leaks, evaporation, and the ingress of contaminants into the fuel system. It is a critical component for maintaining fuel system integrity and safety. Made from durable, fuel-resistant rubber, it measures approximately 55mm in diameter. Using a genuine OEM seal ensures the correct material composition and dimensions for a reliable, long-lasting seal, preventing potential fuel system issues and environmental concerns.

Catalogue entry: seal ring.