The Lower High Pressure AC Hose / Line / Pipe, OEM part number 7L6820721AA, is a critical component in the air conditioning system of select Audi and Volkswagen models, including the 2007-2008 Audi Q7 and the 2008 Volkswagen Touareg with a 4.2L V8 engine. Positioned within the vehicle’s engine bay, this hose connects the compressor to the condenser, facilitating the flow of refrigerant under high pressure. If the hose becomes worn, punctured, or degraded due to age, it can lead to refrigerant leaks, resulting in ineffective cooling performance. This factory-original part ensures precise fit and functionality, maintaining optimal cabin comfort. Compatible part numbers include 7L8820727B, 7L6820750AJ, and 4L0260401A.
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