Genuine OEM Volkswagen Wiring Harness For Alternator, part number 3CN971230R. This wiring harness is essential for transmitting electrical power generated by the alternator to the vehicle's battery and electrical systems. It is located in the engine bay, connecting the alternator. The part weighs approximately 0.4007 kg. Genuine OEM wiring harnesses are manufactured to exact specifications to ensure proper electrical conductivity and prevent system failures.