Timing chain guide rail. Porsche 955 / 957 / 958 Cayenne V6 › 95510546900

OE Match timing chain guide rail.

Fits

• Porsche 955 Cayenne 3.2L 2004-06
  
• Porsche 957 Cayenne 3.6L 2008-10
  
• Porsche 958 Cayenne 3.6L 2011-18
  
  Check fitment for your specific vehicle (model, year, engine) before ordering.
  
  

Diagram ref no: 4

What This Product Does

The rail provides a guiding surface for the timing chain as it travels through the valve-control assembly. It works alongside the chain and tensioning components; it is not itself a chain tensioner.

Functions

• Supports the intended chain running path.
• Guides chain movement within the timing assembly.
• Replaces the corresponding worn or damaged rail during timing-system repairs.
  
  

Technical Details

• Component reference: 95510546900.
• Identified as a guide rail or slide rail in the supplied diagrams.
  
  

Symptoms of Fault

• Chain rattling that becomes more frequent or lasts longer after starting.
• Continued noise from the timing assembly.
• Guide fragments discovered during servicing or dismantling.
• Uneven running or timing-related faults requiring further diagnosis.
  
  

These signs can involve other timing components and do not establish that this rail is faulty.

Why Replacement Matters

A worn or fractured guide should be assessed during timing-system inspection. When access is available, checking the chains, tensioners, adjoining guides and fixings helps establish the full repair requirements rather than replacing one component without investigating related wear.

FAQs

Does a brief rattle mean the guide has failed?
No. Investigate the source, particularly if the sound increases in duration or frequency.

Should other timing parts be inspected?
Yes. Assess chain condition, tensioner operation and the remaining guides before deciding which components require renewal.

Check fitment for your specific vehicle (model, year, engine) before ordering.