Timing Chain Tensioner for Audi Q7/Volkswagen Touareg TDI (057109217J / 95510521700)

Part Numbers: This timing chain tensioner is engineered with OEM part numbers 057109217J and 95510521700, ensuring precise compatibility with Audi and Volkswagen TDI models. These codes validate its authenticity and guarantee a factory-spec fit for reliable engine timing performance.
Vehicle Compatibility: Specifically designed for:
- Audi Q7 (4L): 2006–2015 (3.0L TDI, 4.2L TDI engines; engine codes CRCA, CASA)
- Volkswagen Touareg (7L): 2002–2010 (3.0L TDI, 4.2L TDI engines; engine codes BRE, BKS)
  Verify your vehicle’s engine code and production year for exact fitment.
Function and Quality: The tensioner maintains optimal timing chain tension to prevent slack, noise, or misalignment—critical for TDI engines’ high-pressure fuel systems. Constructed with a durable aluminum housing, hardened steel piston, and hydraulic damping, it withstands pressures up to 9 bar and temperatures up to 135°C. The self-locking mechanism ensures consistent tension, while heat-resistant seals prevent oil leaks. Replace worn units during scheduled service to avoid chain slippage, restore timing precision, and protect against costly engine damage in interference designs.

057109217J 95510521700 Timing Chain Tensioner for Audi Q7 Volkswagen Touareg TDI