Fuel injector gasket set, lower injector. Porsche 957 / 958 Cayenne 3.6L › 95511091000

The OE Match lower fuel injector gasket set is for resealing the lower high-pressure injector installation, it provides replacement sealing components for injector servicing and repairs where the existing seals require renewal.

Fits

• Porsche 957 Cayenne 3.6L VR6 2008–10
• Porsche 958 Cayenne 3.6L VR6 2011-2018
  
  Check fitment for your specific vehicle (model, year, engine) before ordering.
  
  Diagram ref no 8
  
  Required Quantity

Three gasket sets are specified for the lower high-pressure injector positions in the applicable fuel-injection assembly.

What Is This Part?

This is a gasket set for the lower injector application within the engine's high-pressure fuel-injection assembly. That assembly includes the fuel collection pipes, high-pressure injectors and associated fuel lines. The gasket set services the sealing interfaces around the lower injector installation when worn or disturbed seals need replacing. Correct identification matters because the assembly also uses a separate gasket set for the upper injector application.

What Does This Part Do?

• Seals the injector installation: Provides replacement sealing components at the specified lower injector position.
• Supports resealing work: Allows deteriorated or damaged injector seals to be renewed during an appropriate repair.
• Services the correct application: Matches the lower injector sealing arrangement identified for the listed engines.
  
  Why Replace This Part?

Injector seals may need replacement if inspection reveals deterioration, damage or leakage at the sealing interface. A seal that is cut, distorted or no longer seats correctly cannot be relied upon to seal simply by refitting it. The adjoining injector and sealing surfaces should also be checked, as replacing seals alone will not correct a damaged mating surface.

During injector removal or related engine work, assess the seals and follow the applicable workshop renewal instructions. Rough running, hard starting or fuel odours warrant diagnosis, but do not by themselves establish that this gasket set is the cause. Internal injector faults, electrical problems and leaks elsewhere in the fuel system require different repairs.

When to Replace This Part?

• Visible seal damage: Cuts, splitting, distortion or deterioration found during dismantling.
• Confirmed interface leakage: Inspection identifies leakage at a sealing point serviced by this set.
• Poor seating: An existing seal is displaced or cannot sit correctly in its intended position.
• Removal and refitting: The vehicle-specific workshop procedure requires seal renewal after the injector has been removed.
• Persistent running symptoms: Investigate rough idle, misfires or hard starting before deciding whether injector seals need replacement.
  
  Where Is This Part Fitted?

Location: At the lower high-pressure injector installation in the engine's fuel-injection assembly, alongside the fuel collection pipe and injector connections. Match the lower injector application rather than selecting solely by engine capacity.

FAQs

• Will new seals fix a faulty injector? They can address a confirmed sealing fault, but will not repair an injector's internal electrical or fuel-metering fault.
• Should I order from a fault code alone? No. Fault codes guide diagnosis; confirm the affected component and the source of any leakage first.
• What should be checked during fitting? Check the injector, seal seating areas and associated connections for damage or contamination, and use the correct vehicle-specific installation procedure
  
  Product Summary

• Product: Fuel injector gasket set for the lower injector application.
• Brand: OE Match.
• Reference: 95511091000.
• Purpose: Renewal of the specified injector sealing interfaces during servicing or repair.

Related reference numbers
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95511091000

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