Description
The Audi Belt Damper (OEM Part 057903133L) is a genuine belt tensioner damper used in the accessory drive (serpentine) belt system of certain Audi and Volkswagen vehicles. It works to maintain the correct tension on the engine’s drive belt, helping to reduce vibration, prevent belt slip, and ensure smooth operation of belt‑driven accessories like the alternator, power steering pump, and A/C compressor. Choosing an OEM tensioner damper ensures long‑lasting performance and alignment with factory specifications.
Specifications
- Part Number: 057903133L
- Product Type: Belt Tensioner / Damper
- Material: High‑strength metal and precision bearing assembly
- Fitment: Genuine Volkswagen Group part for select Audi/VW vehicles with 4.2 L engines (e.g., A8/S8, Q7, Touareg) circa 2010–2015. Specific model fitment should be verified with VIN.
- Function: Maintains tension and damps vibration on the accessory / serpentine belt
- Warranty: Varies by supplier (factory or dealer support)













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