Genuine OEM Audi Engine Accessory Belt Tensioner, part number 04E145299N. This critical component is designed to maintain the correct tension on the engine's serpentine or accessory drive belt. It ensures that power steering, alternator, and air conditioning compressor operate efficiently and without slippage. Located on the engine's accessory drive system, it provides constant, dynamic tension. Weighing 0.507 kg, this tensioner is engineered for durability and precise function. Opting for a genuine OEM belt tensioner guarantees the correct spring rate, pulley alignment, and material quality for long-lasting, vibration-free service and optimal belt life.

Catalogue entry: B TENSIONR; for vehicles with air condit..

Fitted with: N10665001 BOLT, 04E145933AG PLY-V-BELT.