The Claas 11424280 is a genuine left rear light assembly designed for various Claas tractor models, including the Arion 400, 500, 600 series, Axion 800, 900 series, and Xerion 4000, 4500, 5000 series. This 12V light provides essential functions such as indicator, brake light, and tail light, utilizing P21W and R5W bulb types. With robust construction and precise fitment, it ensures reliable performance and compliance with safety standards for agricultural machinery.