Engine valve cover gasket, Inner. Porsche 955 Cayenne S / Turbo 4.5L 2003–06 › 94810593300

This OE Match inner engine valve cover gasket seals the inner valve cover joint on Turbo 4.5L engines. It is a replacement sealing component for repairs involving a leaking or damaged gasket or valve cover removal.

Fits

Porsche Cayenne 9PA (955) 2003–2006:

• Porsche 955 Cayenne S 4.5L 2003-06
• Porsche 955 Cayenne Turbo 4.5L 2003-06
  
  Check fitment for your specific vehicle (model, year, engine) before ordering.
  
  Diagram ref no 2
  
  Required Quantity

Two inner gaskets are required for the complete valve cover assembly across both cylinder banks of the listed engines.

What Is This Part?

This gasket forms the inner seal within the engine valve cover assembly. The covers enclose the camshafts and valve gear, where engine oil provides lubrication during operation. The inner gasket works alongside the separate outer cover gaskets to seal the assembly. Its condition and correct seating matter when resealing a cover: replacing a gasket will not compensate for a damaged cover or an unsuitable sealing surface.

What Does This Part Do?

• Seals the inner joint: Closes the intended sealing interface within the valve cover assembly.
• Helps retain engine oil: Restricts oil seepage through that joint when correctly installed against sound mating surfaces.
• Completes the cover sealing arrangement: Works with the other cover seals, each of which serves a separate sealing position.
  
  Why Replace This Part?

A gasket that has hardened, split, become permanently compressed or suffered damage during removal may no longer seal correctly. Replacement is appropriate when inspection confirms deterioration or traces an oil leak to this inner sealing position.

During valve cover work, inspect the gasket seating area, cover condition and fasteners before reassembly. Clean mating surfaces and the correct engine-specific tightening procedure are important; extra tightening is not a suitable remedy for a damaged gasket or distorted cover.

When to Replace This Part?

• Confirmed leakage: Fresh oil is traced to the inner valve cover sealing joint.
• Visible deterioration: The removed gasket shows cracks, splits, hardening or permanent deformation.
• Removal damage: The gasket is torn, pinched or stretched during dismantling.
• Poor seating: The gasket cannot sit correctly in its intended position after the seating area has been checked.
• Cover refitting: Inspection shows that the existing gasket is unsuitable for reuse.
  
  Where Is This Part Fitted?

Location: At the inner sealing position of the valve covers on top of the cylinder heads. The assembly covers both cylinder banks: cylinders 1–4 and cylinders 5–8.

Technical Details

• Engine codes: M48.00 / M48.50.
• Sealing position: Inner valve cover joint.
  
  Product Summary

• Product: Inner engine valve cover gasket.
• Brand: OE Match.
• Purpose: Seals the inner valve cover joint during engine resealing and repair.

Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.

94810593300

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