Fuel injector gasket set, Upper. Porsche 957 Cayenne / 958 Cayenne 3.6L › 95511091100

OE Match upper fuel injector gasket set. It provides replacement sealing components for the upper high-pressure injector connection during injector resealing and repair.

Fits

• Porsche 957 Cayenne 3.6L 2008–10
• Porsche 958 Cayenne 3.6L 2011–17
  
  Check fitment for your specific vehicle (model, year, engine) before ordering.
  
  Diagram ref no 9
  
  Required Quantity

Three upper gasket sets are specified for the fuel collection pipe and high-pressure injector assembly

What Is This Part?

This gasket set services the upper sealing position of the high-pressure fuel injector. It belongs to the fuel collection pipe and injector assembly, where the injector connects to its fuel supply. The sealing components form part of that connection rather than the injector's electrical control or fuel-metering mechanism. It is intended for sealing repairs and injector refitting work, with the exact replacement procedure determined by the engine application.

What Does This Part Do?

• Seals the upper connection: Provides the sealing components used at the upper injector position.
• Supports injector resealing: Allows the upper sealing components to be renewed when servicing the injector assembly.
• Works with the fuel collection pipe: Forms part of the sealing arrangement between the fuel supply assembly and injector.
  
  Why Replace This Part?

Renew the upper sealing components if inspection confirms damage, deterioration or leakage at their connection. A seal that is cut, distorted or no longer seats correctly should not be relied upon during reassembly. Inspect the adjoining injector and connection as well, because damaged mating surfaces or an incorrectly seated injector may also need attention.

Injector removal is another important repair context. High-pressure injector servicing requires renewal of the sealing and service components specified by the applicable repair instructions, even when the injector itself is being reused. Follow the engine-specific procedure rather than assuming the removed seals can be refitted. 

When to Replace This Part?

• Visible seal damage: Cuts, splits, distortion or deterioration found during dismantling.
• Confirmed connection leakage: Fuel dampness or a fuel smell traced to the upper injector sealing position.
• Poor seating: A displaced or damaged seal that prevents correct assembly.
• Injector servicing: When the applicable removal and refitting instructions specify new upper sealing components. 
• Persistent running symptoms: Rough idle, misfires or hard starting warrant diagnosis; they do not by themselves confirm that this gasket set needs replacement.
  
  Where Is This Part Fitted?

Location: At the upper high-pressure injector position within the engine's fuel collection pipe and injector assembly.

FAQs

• Will new seals repair a faulty injector? They address the sealing connection. Injector clogging, electrical faults or internal leakage require separate diagnosis.
• Can the old seals be reused after injector removal? Follow the engine-specific repair instructions. High-pressure injector service guidance calls for replacement of the specified sealing and service components when an injector is removed and reused. 
• What should be checked before fitting? Check the injector seating area and mating connection, and keep dirt out of the assembly during installation. 
• Are special fitting procedures important? Yes. Use the applicable repair instructions and appropriate tools; high-pressure injector seals can require different handling depending on their position and design. 
  
  Product Summary

• Product: Upper fuel injector gasket set.
• Brand: OE Match.
• Purpose: Renews the upper injector sealing components.
• Fitted position: Upper high-pressure injector connection in the fuel collection pipe assembly.