079109510M 95510506510 Timing Chain Guide Rail Kit for Audi S4 04-09

Timing Chain Guide Rail Kit for Audi S4 (2004–2009)

1. Part Numbers: This timing chain guide rail kit features OEM part numbers 079109510M and 95510506510, ensuring precise compatibility with Audi S4 models. These codes validate its authenticity and guarantee a factory-spec fit for optimal engine timing performance.
2. Vehicle Compatibility: Specifically engineered for:
   • Audi S4 (B7): 2004–2009
     Suits 4.2L V8 FSI engine (engine code: BFM) with 340 PS output. Verify your vehicle’s engine code and production year (2004–2009) for exact fitment.
3. Function and Quality: The timing chain guide rail kit maintains proper chain alignment and reduces wear by guiding the timing chain between the crankshaft and camshaft sprockets. Constructed from high-strength composite material with heat-resistant properties (up to 140°C), the rails feature integrated metal reinforcements and self-lubricating nylon surfaces to minimize friction and noise. The kit includes all necessary guide rails (upper, lower, and tensioner-side rails) for a complete replacement, addressing common wear issues that can lead to chain slack or failure. Replace during timing chain service to restore factory-level precision and prevent engine damage from misalignment.

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