The Genuine BMW Gasket Rear Light Left - 63217231239 is a replacement gasket for the left rear light on BMW vehicles. It is designed to provide a secure seal between the rear light and the vehicle body, preventing water and debris from entering the light housing. This gasket is made from high-quality materials and is an authentic BMW part, ensuring a perfect fit and reliable performance. It is compatible with various BMW models and is an essential component for maintaining the functionality and appearance of the rear light.