Genuine OEM Audi Coolant Pipe, part number 03L121049G. This critical component is designed to transport coolant efficiently throughout the engine cooling system, maintaining optimal operating temperatures. Positioned within the engine bay, it connects various cooling system elements. Weighing approximately 0.545 kg, this pipe is built for durability. Choosing a genuine OEM coolant pipe ensures exact routing geometry, proper sealing, and resistance to thermal cycling and chemical degradation, preventing leaks and maintaining cooling system integrity.