Manufactured from durable plasticEasy to installVehicle try-on testing has been conducted on this part to ensure a trouble-free performanceOE part number: 1F1Z 11666-AA, 1F1Z 11666-BA, 3L3Z 11661-AADorman offers a line of headlight switch knobs for a range of applications. All the headlight switch knobs are constructed from high-quality materials for a long service life.