Injectors

Fuel injector gasket set for lower injector.

Fits:
Porsche 957 Cayenne 3.6L 2008-10
Porsche 958 Cayenne 3.6L 2011-17

Click 'Zoom in' for large parts diagram.
Diagram ref no 8

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Related, superseded, cross reference or alternative numbers for comparison.

95511091000

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Related, superseded, cross reference or alternative numbers for comparison.

95511091000

The product you are viewing cross references to these numbers

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.

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Related, superseded, cross reference or alternative numbers for comparison.

95511091100

The product you are viewing cross references to these numbers

Fuel injector gasket set for upper injector.

Fits:
Porsche 957 Cayenne 3.6L 2008-10
Porsche 958 Cayenne 3.6L 2011-17

Click 'Zoom in' for large parts diagram.
Diagram ref no 9

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Related, superseded, cross reference or alternative numbers for comparison.

95511091100

The product you are viewing cross references to these numbers

Fuel injector. Identification: BLUE
8 per car. Price is for each.

Fits:
Porsche 957 Cayenne S / GTS 4.8L 2008-10
Porsche 958 Cayenne S / GTS 4.8L 2011-14
Porsche 970 Panamera 3.6L 2011-16
Porsche 970 Panamera S 4.8L 2010-13
Porsche 970 Panamera GTS 4.8L 2013-16

Click 'Zoom in' for large parts diagram.
Diagram ref no 5

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Related, superseded, cross reference or alternative numbers for comparison.

94811012824

The product you are viewing cross references to these numbers

Fuel injector. Identification: YELLOW
8 per car. Price is for each.

Fits:
Porsche 957 Cayenne turbo 4.8ltr - 2008 to 2010
Porsche 958 Cayenne turbo 4.8ltr - 2011 to 2014
Porsche 970 Panamera turbo 4.8ltr - 2009 to 2016

Diagram ref no 5

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Related, superseded, cross reference or alternative numbers for comparison.

948110129BX

The product you are viewing cross references to these numbers
PLEASE NOTE:

• The surcharge for this reconditioned part will be refunded when the exchange unit is received and approved by us and the relevant manufacturer.
• Please note, surcharge refunds often take an average of 6 to 8 weeks to be approved by the manufacturer.
• Acceptance of the exchange part is at the manufacturer's discretion, based on the part being fit for reconditioning.
• All surcharges and exchanges are subject to our terms and conditions.  

LIQUI MOLY Pro-Line Direct Injection Cleaner - 120ml

LIQUI MOLY Pro-Line Direct Injection Cleaner is an advanced petrol fuel additive designed to remove deposits from fuel injectors, combustion chambers and piston surfaces. Its powerful polyetheramine (PEA) formula helps restore efficient fuel delivery, improve combustion and maintain smooth engine performance.

Fits:

• Porsche Boxster 987 MKII 2009-12
• Porsche Boxster 981 2012-16
• Porsche Boxster 718 2017>>
• Porsche 997 MKII 2009-12
• Porsche 991.1 2012-16
• Porsche 991.2 2016-19
• Porsche 992.1 2019-24
• Porsche 992.2 2024>>
• Porsche Cayman 987C MKII 2009-12
• Porsche Cayman 981 2013-16
• Porsche Cayman 718
• Porsche 957 Cayenne 2007-10
• Porsche 958 Cayenne 2010-17
• Porsche 9YA Cayenne 2018-23
• Porsche 9YA.2 Cayenne 2023>>
• Porsche 970.1 Panamera 2009-13
• Porsche 971.1 Panamera 2017-20
• Porsche 971.2 Panamera 2021-23
• Porsche 976 Panamera 2023>>
• Porsche 95B.1 Macan 2014-18
• Porsche 95B.2 Macan 2019-21
• Porsche 95B.3 Macan 2022>>

Developed particularly for modern direct injection petrol engines, it also helps reduce the risk of low-speed pre-ignition (LSPI), which can cause serious engine damage.

What Does LIQUI MOLY Pro-Line Direct Injection Cleaner Do?

The additive removes deposits from fuel injectors and combustion chambers, helping maintain correct fuel spray patterns and efficient combustion. This can improve engine responsiveness, reduce fuel consumption and support smoother running.

Why Do Fuel Injectors Become Contaminated?

Fuel injectors are exposed to high temperatures and combustion deposits. Over time, carbon and other contaminants can accumulate around injector nozzles, disrupting fuel delivery and potentially causing rough running, increased fuel consumption or reduced engine performance.

When Should It Be Used?

LIQUI MOLY recommends the additive for periodic fuel system maintenance, particularly in direct injection engines. It can help address deposit-related performance issues and maintain injector cleanliness.

For best results, treatments should be spaced at least 5,000km apart.

Not suitable for diesel engines.

Key Features

• Advanced PEA cleaning technology.
• Removes deposits from petrol fuel injectors.
• Cleans combustion chambers and piston surfaces.
• Helps restore efficient fuel spray patterns.
• Reduces the risk of low-speed pre-ignition (LSPI).
• Supports smoother engine operation and fuel efficiency.
• Suitable for direct and manifold petrol injection systems.
• Ideal for periodic fuel system maintenance.

Application Instructions

• Add the contents directly to the petrol fuel tank.
• One 120ml can treats 30–50 litres of petrol.
• The additive mixes automatically with the fuel.
• Repeat no sooner than every 5,000km for ongoing maintenance.

Follow vehicle manufacturer recommendations where these differ from the standard dosage.

Product Category Description – Porsche Direct Injection & Fuel System Cleaners

LIQUI MOLY Pro-Line Direct Injection Cleaner provides an effective fuel system cleaning solution for Porsche petrol engines, helping remove injector deposits and maintain efficient combustion.

Particularly suited to modern direct fuel injection Porsche engines, including the 997.2, 991, 992, Boxster, Cayman, 718, Cayenne, Macan and Panamera, it helps maintain injector performance and reduce deposit-related running problems.