Genuine OEM Audi Engine Coolant Hose, part number 4K0121063B. This hose is responsible for transporting vital coolant throughout the engine cooling system, maintaining optimal operating temperatures and preventing overheating. It is a critical component for engine longevity. Made from high-quality, heat-resistant rubber, this hose ensures a leak-free connection and withstands pressure fluctuations. Opting for a genuine OEM coolant hose ensures precise fitment, correct routing geometry, and material integrity to resist degradation from coolant and engine heat.

Catalogue entry: HOSE ×2.