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Porsche > Engine Rebuild Parts > Cylinder Head / Camshaft Carrier >

Valve Cover Spark Plug Seal. Porsche 955 Cayenne 3.2L 2003-06  ❭  95510448401

Valve Cover Spark Plug Seal. Porsche 955 Cayenne 3.2L 2003-06 - 95510448401 - 114 537
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Product Information
Product Information
Valve Cover Spark Plug Seal.
The OE Match Valve Cover Spark Plug Seal is a premium-quality replacement engine sealing component designed to provide a secure, leak-free seal around the spark plug tube where it passes through the valve cover on compatible Porsche models. Manufactured to OE specifications for fit, sealing performance and durability, this precision-engineered seal prevents engine oil from entering the spark plug wells, protecting the ignition system while maintaining the integrity of the engine's lubrication system.  
Sold Each.
x6 Required Per Engine.

Fits:
  • Porsche 955 Cayenne 3.2L V6 2003-06

Diagram Ref No 20

Manufactured from premium heat-resistant, oil-resistant elastomer, the spark plug seal is engineered to withstand continuous exposure to hot engine oil, elevated engine temperatures and repeated thermal cycling without hardening, shrinking or cracking. Precision-moulded to the original Porsche dimensions, it provides direct OE-style fitment and dependable long-term sealing performance, making it the ideal replacement during valve cover gasket replacement, engine servicing or cylinder head repairs.  

What This Product Does:
  • Creates a leak-free seal around the spark plug tube.
  • Prevents engine oil from entering the spark plug wells.
  • Protects ignition coils and spark plugs from oil contamination.
  • Maintains the integrity of the valve cover sealing system.
  • Helps ensure reliable ignition system performance.
  • Supports efficient engine operation.
  • Restores factory sealing performance.
  • Forms an essential part of the engine valve cover assembly.

Symptoms Of Wear Or Failure:
  • Engine oil collecting in the spark plug wells.
  • Oil contamination on ignition coils or spark plugs.
  • Engine misfires.Rough idle.
  • Reduced engine performance.
  • Illuminated engine management or check engine warning light.
  • Burning oil smell from the engine bay.
  • Visible oil leaks around the valve cover.
  • Deteriorated, cracked or hardened seal.
  • Premature failure of ignition coils caused by oil contamination.

Why Replacement Matters:

  • The spark plug seal is continually exposed to hot engine oil, high temperatures and repeated heating and cooling cycles. Over time, the sealing material naturally hardens, flattens or cracks, reducing its ability to prevent oil from leaking into the spark plug wells.
  • Oil contamination around the spark plugs and ignition coils can lead to ignition misfires, poor engine performance and premature failure of expensive ignition components. Continued oil leakage may also contribute to increased emissions, reduced fuel efficiency and costly engine repairs if left unresolved.
  • Replacing worn spark plug seals whenever the valve cover is removed helps restore the integrity of the engine sealing system and protects the ignition components from oil contamination. The OE Match Valve Cover Spark Plug Seal is manufactured to OE standards using premium oil- and heat-resistant materials, providing factory-style fitment, exceptional sealing performance and long-lasting durability, ensuring the reliability, efficiency and performance expected from your Porsche.



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