N 903 168 02 : O-ring for Audi and Volkswagen

This O-ring ensures a seal at the water temperature sensor on numerous vehicles from the Audi and Volkswagen ranges, notably the Audi 100, Audi 80, Audi TT (8J), Audi A3, Audi A4 (B5), Audi A6 (C4) and the Volkswagen Golf 3. As part of the restoration or maintenance of a classic vehicle, replacing this O-ring helps prevent any leaks in the cooling circuit and ensures reliable engine temperature readings. This is a new part, conforming to the original reference number, essential for keeping the engine in optimal working order. Particular attention to this type of component contributes to the longevity of the entire cooling circuit.