Cylinder head gasket. Porsche 958 Cayenne / 970 Panamera 3.0L Hybrid › 95810314

OE Match cylinder head gasket, It seals the joint between the cylinder head and engine block during cylinder-head repair or engine rebuilding.

Fits

• Porsche 958 Cayenne HYBRID 3.0L 2011-18
• Porsche 970 Panamera HYBRID 3.0L 2010-16
  
  Diagram ref no 25
  
  Check fitment for your specific vehicle (model, year, engine) before ordering.
  
  What Is This Part?

The cylinder head gasket is the sealing component clamped between the cylinder head and the engine block. It seals around the combustion chambers and the oil and coolant passages crossing this joint. These areas must remain sealed from one another despite combustion pressure and changes in engine temperature. Correct sealing depends on the condition of the mating surfaces and the specified cylinder-head tightening procedure, as well as the gasket itself. 

What Does This Part Do?

• Seals combustion pressure: Closes the head-to-block joint around the cylinders.
• Contains coolant: Seals the coolant passages where they cross between the block and cylinder head.
• Contains engine oil: Seals the oil passages at the cylinder-head joint.
• Separates fluids and combustion gases: Helps prevent leakage between adjoining passages and combustion chambers.
  
  These are the principal sealing duties of a cylinder head gasket. 
  
  Why Replace This Part?

Replacement is appropriate when inspection confirms leakage or damage at the cylinder-head joint, or when the head is removed for repair. Overheating, distorted mating surfaces or insufficient clamping force can compromise the seal. Fitting another gasket without correcting the underlying problem can leave the replacement exposed to the same conditions. 

During repair, the cylinder head and block sealing surfaces should be checked for damage and flatness. Follow the engine-specific requirements for surface preparation, fasteners and tightening, and investigate any cooling-system fault associated with previous overheating. 

When to Replace This Part?

• Confirmed joint leakage: Oil or coolant leakage has been traced to the cylinder-head gasket rather than a nearby seal or connection.
• Evidence of combustion leakage: Inspection reveals a damaged sealing area or tracks where combustion gases have escaped.
• Overheating damage: Inspection after overheating confirms gasket deterioration or distorted sealing surfaces requiring repair.
• Damage during dismantling: The removed gasket has damaged sealing areas and is unsuitable for refitting.
  
  Coolant loss or overheating alone does not establish that the gasket has failed; the cooling system and sealing joint need diagnosis. 
  
  Where Is This Part Fitted?

Location: Between the cylinder head and engine block of the 3.0L V6 petrol engine. Access requires cylinder-head removal; it is not an externally fitted cover seal.

Technical Details

• Cayenne application identifiers: 06EC, CGEA, CGE, CGFA and CJT.
• Panamera application identifiers: CGEA, CGE and CGFA.
  
  

Product Summary

• Product: Cylinder head gasket.
• Brand: OE Match.
• Purpose: Seals combustion chambers, oil passages and coolant passages at the cylinder-head joint.
• Repair context: Cylinder-head sealing repairs and engine rebuilding following inspection.