This chrome fuel cap with lock is suitable for Renault R4. The cap closes the fuel tank opening and helps limit leakage and contamination. The integrated lock allows secure closing and makes unwanted opening more difficult. The design follows the dimensions of the stated model and fits the original filler neck. The chrome surface is smooth and can be cleaned with common methods. The cap is operated by hand and opens with a matching key. The construction is intended for regular use under various conditions and supports reliable access to the fuel tank when needed.