A tailgate upper rubber is an essential seal for the top of a vehicle's tailgate. It is designed to keep out water, dust, and air, contributing to the reduction of noise and vibrations while driving. This rubber component also helps improve the vehicle's climate control efficiency by better insulating the cabin. It is usually made from high-quality, weather-resistant materials that offer long-lasting protection against harmful environmental factors, thereby extending the lifespan of both the vehicle and its interior.