Genuine OEM Audi Battery Alternator Wiring Harness, part number 7L6971227B. This essential electrical component is responsible for connecting the vehicle's battery and alternator to the main electrical system, facilitating power generation and distribution. The harness is designed with specific routing geometry and connectors to ensure proper fitment and secure electrical connections. It features durable protective sheathing and measures approximately 2.255 meters in length. Using a genuine OEM wiring harness guarantees correct gauge wiring, factory-specified connectors, and optimal resistance, preventing electrical issues and ensuring reliable system operation.