CAP-FILLER (Hyundai HN3937759)

A damaged filler cap can allow contaminants into the reservoir, leading to system wear. During inspection, a cap that does not seal properly may cause fluid loss or pressure drop. The cap's primary function is to close the fill opening and maintain a clean environment inside the tank. Keeping a filler cap in sound condition helps prevent dirt and moisture from entering the fluid system. This aftermarket replacement part references Hyundai as the OE maker and cross-references part number HN3937759. Verify the serial number or application, then call (562) 693-7748. A loose or missing cap can result in fluid spillage and reduced system efficiency.

Part number variants: HN3937759, hn3937759