This is a genuine replacement oil filler cap for Fiat, Alfa Romeo, and Lancia vehicles, with part number 735559058. Properly sealing the oil filler is crucial for engine health. It prevents contaminants like dirt, dust, and moisture from entering the engine oil, which can lead to premature wear and damage. It also helps to contain oil vapors within the engine, contributing to emissions control. If your current oil filler cap is damaged, cracked, or missing, replacing it with this OEM part will restore the necessary seal and ensure your engine remains protected. This cap is designed to meet the specific standards and fitment requirements of compatible Fiat, Alfa Romeo, and Lancia models. Ensure you are purchasing the correct part for your specific vehicle model and year. Refer to your vehicle's owner's manual or consult a professional if you are unsure about fitment.
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