Genuine OEM Audi Engine Coolant Hose, part number 3WA121051G. This hose is a critical component of the engine cooling system, designed to transport coolant between various engine components and the radiator, maintaining optimal engine operating temperatures. It is shown in the diagram as a shaped pipe within the cooling circuit. Weighing approximately 0.10 kg, this hose is engineered for precise fitment and durability. Choosing a genuine OEM hose ensures correct routing geometry, material compatibility, and resistance to high temperatures and pressures, preventing leaks and maintaining cooling system integrity.

Catalogue entry: HOSE.