Genuine OEM Audi Coolant Pipe, part number 4S0121050D. This pipe is a critical component in the engine cooling system, responsible for circulating coolant to maintain optimal engine operating temperatures. It is located within the engine bay, connecting various hoses and cooling components. Constructed from durable materials, this pipe is designed for long-term reliability. Choosing a genuine OEM coolant pipe ensures exact routing geometry, proper sealing, and resistance to thermal cycling and corrosion, preventing leaks and maintaining cooling system integrity.

Catalogue entry: WATER PIPE.