Genuine OEM Audi Quick Release Coolant Hose, part number 9J1121630. This hose is an integral part of the engine cooling system, designed to efficiently transport coolant throughout the engine to maintain optimal operating temperatures. It features quick-release connectors for ease of installation and maintenance. With a length of 0.255 m and weighing 0.127 kg, it is constructed from high-quality, heat-resistant materials. Genuine OEM hoses ensure precise fitment, correct routing, and durability against thermal and pressure cycling, which are crucial for preventing leaks and maintaining cooling system efficiency.