do not press the back button…
Enter your VAT number here and click Verify:
Your details have been verified. VAT number registered to:
,
.
Your order will now be zero rated for VAT purposes. We reserve the right to verify these details after your order request has been made and reinstate VAT if required.
Your VAT details were not recognised or were invalid. Your VAT number must be matched to your Billing Country as specified above. This is currently specified as . You do not need to enter the country code part of your VAT number as this has already been selected in your billing address details above.
The VAT number checking service is currently offline. Please supply your VAT details within the comments or special instructions field below and we will apply a VAT discount after placing your order request.
Fuel Injectors
Kit includes - 6 x fuel injector seal
Fits:
Porsche 911 - 1974 to 1983
for cars with K-Jetronic fuel injection (non turbo)
Diagram ref no 44
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
99970142340KIT
The product you are viewing cross references to these numbers
- Porsche 911 1974-1977 2.7L / 1976-77 3.0 Carrera
- Porsche 911 1978-1983 3.0L / SC
- Porsche 924S 2.5L 1986-87
- Porsche 924S 2.5L 1988
- Porsche 944 2.5L 8V 1982-87
- Porsche 944 2.7L 8V 1988-89
- Porsche 944S 2.5L 16V 1987-88
- Porsche 944S2 3.0L 16V 1989-91
- Porsche 944 Turbo 2.5L 8V 1985-88
- Porsche 944 Turbo 2.5L 8V 1989-91
- Porsche 944 Turbo S 2.5L 8V 1988
- Porsche 928S2 4.7L 1984-86
Fuel Injector Locating Bush Inner – Injector Mounting O-Ring
& Vibration Damper
Sold each
High-quality fuel injector locating bush designed for
Porsche 928S models with engines M28.19, M28.20, M28.21, and M28.22, and also
used in various other applications including select Mercedes models.
Fits:
- Porsche 928S 4.7L 1981-83
- Porsche 928S2 4.7L 1984-86
- Porsche 914-4 (1970-1976)
Diagram ref no 27
This component is mounted over the fuel injector and functions as both a locating bearing and vibration-damping O-ring. It ensures the injector is correctly positioned while reducing movement and absorbing vibration within the fuel system.
Manufactured from durable rubber material, this locating bush is engineered to withstand fuel system conditions, heat, and long-term use while maintaining flexibility and sealing performance.
A direct replacement part, this injector locating inner bush is essential for maintaining proper injector alignment, reducing vibration, and ensuring reliable fuel delivery.
Key Features
• Direct replacement fuel injector inner locating bush / O-ring
• Suitable for Porsche 928S (M28.19 / M28.20 / M28.21 / M28.22)
• Also used in various compatible vehicle applications (including Mercedes)
• Provides injector positioning and vibration damping
• Durable rubber construction for long-term performance
• OEM-style fit and function
Function and Purpose
This locating bush acts as both a positioning guide and vibration damper for the fuel injector.
It helps to:
• Secure the injector in its correct position
• Absorb vibration within the fuel system
• Improve sealing and stability
• Support consistent fuel delivery and injector performance
Why Replace Your Injector Locating Bush
Over time, rubber sealing and damping components can degrade.
Common issues include:
• Hardened or cracked rubber
• Loss of elasticity and damping ability
• Poor injector seating or movement
• Fuel system vibration or instability
Replacing the locating bush restores proper injector fitment and improves overall system performance.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
311133261A
The product you are viewing cross references to these numbers
- Porsche 928S 4.7L 1981-83
- Porsche 928S2 4.7L 1984-86
- Porsche 914 (1970-1976)
Shop Securely
12 Month Warranty
Worldwide Delivery
Fuel Injector Locating Bush Inner – Injector Mounting O-Ring
& Vibration Damper
Sold each
High-quality fuel injector locating bush designed for
Porsche 928S models with engines M28.19, M28.20, M28.21, and M28.22, and also
used in various other applications including select Mercedes models.
Fits:
- Porsche 928S 4.7L 1981-83
- Porsche 928S2 4.7L 1984-86
- Porsche 914-4 (1970-1976)
Diagram ref no 27
This component is mounted over the fuel injector and functions as both a locating bearing and vibration-damping O-ring. It ensures the injector is correctly positioned while reducing movement and absorbing vibration within the fuel system.
Manufactured from durable rubber material, this locating bush is engineered to withstand fuel system conditions, heat, and long-term use while maintaining flexibility and sealing performance.
A direct replacement part, this injector locating inner bush is essential for maintaining proper injector alignment, reducing vibration, and ensuring reliable fuel delivery.
Key Features
• Direct replacement fuel injector inner locating bush / O-ring
• Suitable for Porsche 928S (M28.19 / M28.20 / M28.21 / M28.22)
• Also used in various compatible vehicle applications (including Mercedes)
• Provides injector positioning and vibration damping
• Durable rubber construction for long-term performance
• OEM-style fit and function
Function and Purpose
This locating bush acts as both a positioning guide and vibration damper for the fuel injector.
It helps to:
• Secure the injector in its correct position
• Absorb vibration within the fuel system
• Improve sealing and stability
• Support consistent fuel delivery and injector performance
Why Replace Your Injector Locating Bush
Over time, rubber sealing and damping components can degrade.
Common issues include:
• Hardened or cracked rubber
• Loss of elasticity and damping ability
• Poor injector seating or movement
• Fuel system vibration or instability
Replacing the locating bush restores proper injector fitment and improves overall system performance.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
311133261A
The product you are viewing cross references to these numbers
- Porsche 928S 4.7L 1981-83
- Porsche 928S2 4.7L 1984-86
- Porsche 914 (1970-1976)
Shop Securely
12 Month Warranty
Worldwide Delivery
Fits:
Porsche 914-4 1.7
Porsche 914 1.8/2.0
Porsche 928 1980-84
Diagram ref no 23
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
311133263
The product you are viewing cross references to these numbers
- Porsche 928S 4.7L 1981-83
- Porsche 928S2 4.7L 1984-86
- Porsche 914 (1970-1976)
Shop Securely
12 Month Warranty
Worldwide Delivery
Fuel Injector Locating Bush – Injector Mounting O-Ring
& Vibration Damper
Sold each
High-quality fuel injector locating bush designed for
Porsche 928S models with engines M28.19, M28.20, M28.21, and M28.22, and also
used in various other applications including select Mercedes models.
Fits:
- Porsche 928S 4.7L 1981-83
- Porsche 928S2 4.7L 1984-86
- Porsche 914-4 (1970-1976)
Diagram ref no 25
This component is mounted over the fuel injector and functions as both a locating bearing and vibration-damping O-ring. It ensures the injector is correctly positioned while reducing movement and absorbing vibration within the fuel system.
Manufactured from durable rubber material, this locating bush is engineered to withstand fuel system conditions, heat, and long-term use while maintaining flexibility and sealing performance.
A direct replacement part, this injector locating bush is essential for maintaining proper injector alignment, reducing vibration, and ensuring reliable fuel delivery.
Key Features
• Direct replacement fuel injector locating bush / O-ring
• Suitable for Porsche 928S (M28.19 / M28.20 / M28.21 / M28.22)
• Also used in various compatible vehicle applications (including Mercedes)
• Provides injector positioning and vibration damping
• Durable rubber construction for long-term performance
• OEM-style fit and function
Function and Purpose
This locating bush acts as both a positioning guide and vibration damper for the fuel injector.
It helps to:
• Secure the injector in its correct position
• Absorb vibration within the fuel system
• Improve sealing and stability
• Support consistent fuel delivery and injector performance
Why Replace Your Injector Locating Bush
Over time, rubber sealing and damping components can degrade.
Common issues include:
• Hardened or cracked rubber
• Loss of elasticity and damping ability
• Poor injector seating or movement
• Fuel system vibration or instability
Replacing the locating bush restores proper injector fitment and improves overall system performance.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
311133263
The product you are viewing cross references to these numbers
- Porsche 928S 4.7L 1981-83
- Porsche 928S2 4.7L 1984-86
- Porsche 914 (1970-1976)
Shop Securely
12 Month Warranty
Worldwide Delivery
Fits:
Porsche 911 Carrera 3.2L 1984-88
Porsche 924S 1986-88
Porsche 928S2 1985-86 Man Cars
Porsche 944 1982-91
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
94411090100
The product you are viewing cross references to these numbers
- Porsche 911 1984-1986 3.2L
- Porsche 924S 2.5L 1986-87
- Porsche 924S 2.5L 1988
- Porsche 944 2.5L 8V 1982-87
- Porsche 944 2.7L 8V 1988-89
- Porsche 944S 2.5L 16V 1987-88
- Porsche 944S2 3.0L 16V 1989-91
- Porsche 944 Turbo 2.5L 8V 1985-88
- Porsche 944 Turbo 2.5L 8V 1989-91
- Porsche 944 Turbo S 2.5L 8V 1988
- Porsche 928S2 4.7L 1984-86
Shop Securely
12 Month Warranty
Worldwide Delivery
Fits:
Porsche 911 Carrera 3.2L 1984-88
Porsche 924S 1986-88
Porsche 928S2 1985-86 Man Cars
Porsche 944 1982-91
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
94411090100
The product you are viewing cross references to these numbers
- Porsche 911 1984-1986 3.2L
- Porsche 911 1987-1989 3.2L G50
- Porsche 924S 2.5L 1986-87
- Porsche 924S 2.5L 1988
- Porsche 944 2.5L 8V 1982-87
- Porsche 944 2.7L 8V 1988-89
- Porsche 944S 2.5L 16V 1987-88
- Porsche 944S2 3.0L 16V 1989-91
- Porsche 944 Turbo 2.5L 8V 1985-88
- Porsche 944 Turbo 2.5L 8V 1989-91
- Porsche 944 Turbo S 2.5L 8V 1988
- Porsche 928S2 4.7L 1984-86
Shop Securely
12 Month Warranty
Worldwide Delivery
Sold each - 6 required per car
Fits:
Porsche 911 - 1974 to 1983
for cars with K-Jetronic fuel injection (non turbo)
Diagram ref no 44
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
99970142340
The product you are viewing cross references to these numbers
- Porsche 911 1974-1977 2.7L / 1976-77 3.0 Carrera
- Porsche 911 1978-1983 3.0L / SC
- Porsche 924S 2.5L 1986-87
- Porsche 924S 2.5L 1988
- Porsche 944 2.5L 8V 1982-87
- Porsche 944 2.7L 8V 1988-89
- Porsche 944S 2.5L 16V 1987-88
- Porsche 944S2 3.0L 16V 1989-91
- Porsche 944 Turbo 2.5L 8V 1985-88
- Porsche 944 Turbo 2.5L 8V 1989-91
- Porsche 944 Turbo S 2.5L 8V 1988
- Porsche 928S2 4.7L 1984-86
Shop Securely
12 Month Warranty
Worldwide Delivery
Reference numbers: 357972741A, 37906240.
Fits:
Porsche 924 S
Porsche 944
Porsche 968
Porsche 928
Description:
This repair kit is used to overhaul the plugs for the injectors. As a rule, the clips break off at the plugs after the years and the rubber grommet is cracked by its kinked position on the valve. As a result, moisture penetrates to the plug contacts and cause them to corrode. If you do not want to procure a completely new engine wiring harness right away, you can use this repair kit to replace the plug-in contacts in the original way.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
5109
The product you are viewing cross references to these numbers
- Porsche 924S 2.5L 1986-87
- Porsche 924S 2.5L 1988
- Porsche 944 2.5L 8V 1982-87
- Porsche 944 2.7L 8V 1988-89
- Porsche 944S 2.5L 16V 1987-88
- Porsche 944S2 3.0L 16V 1989-91
- Porsche 944 Turbo 2.5L 8V 1985-88
- Porsche 944 Turbo 2.5L 8V 1989-91
- Porsche 944 Turbo S 2.5L 8V 1988
- Porsche 968 3.0L 1992-94
- Porsche 968 Sport 3.0L 1994-95
- Porsche 968 CS 3.0L 1993-95
- Porsche 968 Turbo S 3.0L 1993-94
- Porsche 928 4.5L 1978-82
- Porsche 928S 4.7L 1981-83
- Porsche 928S2 4.7L 1984-86
- Porsche 928S4 5.0L 1987-92
- Porsche 928GT 5.0L 1989-91
- Porsche 928GTS 5.4L 1992-95
Shop Securely
12 Month Warranty
Worldwide Delivery
Fuel Injector Hose Repair Kit – COHLINE Fuel Hose &
Clamp Set
Sold as a pair
High-quality fuel injector hose repair kit designed for Porsche 928 models, providing all essential components required to restore injector fuel line connections.
This comprehensive kit includes COHLINE fuel hoses, hose clamps, and protective sleeves, ensuring secure and leak-free connections between the fuel injectors and fuel system. It is designed to replace worn or degraded hoses and maintain correct fuel delivery performance.
Fits:
- Porsche 928S2 4.7L 1984-86
Diagram ref no 48
Manufactured to OEM standards, the included COHLINE fuel hoses are engineered for durability, fuel resistance, and long-term reliability under engine bay conditions.
A direct replacement solution, this injector hose repair kit is essential for maintaining fuel system safety, preventing leaks, and ensuring consistent engine performance.
Included in Set
• 2 x Hose clamps
• 2 x COHLINE fuel hoses
• 2 x Hose sleeves
Key Features
• Complete fuel injector hose repair kit for Porsche 928
• Includes high-quality COHLINE fuel hoses
• Designed for secure and leak-free fuel connections
• Ideal for injector hose replacement and refurbishment
• Fuel-resistant materials for long-term durability
• OEM-style fit and function
Function and Purpose
This repair kit restores the integrity of fuel injector hose connections.
It helps to:
• Maintain proper fuel pressure within the system
• Prevent fuel leaks at injector connections
• Ensure safe and reliable fuel delivery
• Support optimal engine performance
Why Replace Your Injector Hoses
Fuel hoses degrade over time due to heat, pressure, and fuel exposure.
Common issues include:
• Cracked or brittle hoses
• Fuel leaks at injector connections
• Reduced fuel pressure
• Increased safety risks within the engine bay
Replacing injector hoses is critical for both safety and performance.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
92811090301
The product you are viewing cross references to these numbers
- Porsche 928S2 4.7L 1984-86
Shop Securely
12 Month Warranty
Worldwide Delivery
.jpg?width=197&height=148&format=webp "Repair Kit Fuel Injector Hose. Porsche 928 S2 4.7ltr - 92811090301 - PRSESV")
Fuel Injector Hose Repair Kit – COHLINE Fuel Hose &
Clamp Set
Sold as a pair
High-quality fuel injector hose repair kit designed for Porsche 928 models, providing all essential components required to restore injector fuel line connections.
This comprehensive kit includes COHLINE fuel hoses, hose clamps, and protective sleeves, ensuring secure and leak-free connections between the fuel injectors and fuel system. It is designed to replace worn or degraded hoses and maintain correct fuel delivery performance.
Fits:
- Porsche 928S2 4.7L 1984-86
Diagram ref no 48
Manufactured to OEM standards, the included COHLINE fuel hoses are engineered for durability, fuel resistance, and long-term reliability under engine bay conditions.
A direct replacement solution, this injector hose repair kit is essential for maintaining fuel system safety, preventing leaks, and ensuring consistent engine performance.
Included in Set
• 2 x Hose clamps
• 2 x COHLINE fuel hoses
• 2 x Hose sleeves
Key Features
• Complete fuel injector hose repair kit for Porsche 928
• Includes high-quality COHLINE fuel hoses
• Designed for secure and leak-free fuel connections
• Ideal for injector hose replacement and refurbishment
• Fuel-resistant materials for long-term durability
• OEM-style fit and function
Function and Purpose
This repair kit restores the integrity of fuel injector hose connections.
It helps to:
• Maintain proper fuel pressure within the system
• Prevent fuel leaks at injector connections
• Ensure safe and reliable fuel delivery
• Support optimal engine performance
Why Replace Your Injector Hoses
Fuel hoses degrade over time due to heat, pressure, and fuel exposure.
Common issues include:
• Cracked or brittle hoses
• Fuel leaks at injector connections
• Reduced fuel pressure
• Increased safety risks within the engine bay
Replacing injector hoses is critical for both safety and performance.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
92811090301
The product you are viewing cross references to these numbers
- Porsche 928S2 4.7L 1984-86
Shop Securely
12 Month Warranty
Worldwide Delivery
Fuel Injectors – Precision Fuel Delivery for Porsche Performance and Efficiency
Fuel injectors are a crucial component in your Porsche’s engine management system, ensuring the precise amount of fuel is delivered to each cylinder for clean, efficient combustion. A properly functioning injector optimises power output, throttle response, and fuel economy — maintaining the performance standards Porsche is known for.
At Design911, we offer a comprehensive range of fuel injectors designed for Porsche models old and new — from air-cooled classics to the latest turbocharged engines. Built to manufacturer-quality standards using advanced materials and precision nozzles, our injectors ensure accurate fuel atomisation, consistent spray patterns, and long-term durability under extreme temperatures and pressures.
Whether you’re restoring a 911, maintaining a Cayman, or upgrading for performance driving, our injectors are engineered to deliver clean, efficient combustion and consistent engine response.
What Do Fuel Injectors Do?
Fuel injectors are electronically controlled valves that deliver precise amounts of pressurised fuel into the combustion chamber or intake manifold.
Core Functions:
- Atomise
and inject fuel for efficient combustion.
- Ensure
consistent air-fuel ratio across all cylinders.
- Improve engine responsiveness, power, and economy.
- Support emissions control by maintaining clean, complete fuel burn.
Every Porsche engine relies on its injectors for accurate fuel delivery — a vital factor in maintaining both performance and efficiency.
Why Do Fuel Injectors Fail?
Fuel injectors are exposed to heat, pressure, and fuel impurities, making them prone to gradual wear or clogging over time.
Common Causes of Failure Include:
- Fuel
contamination, leading to clogging or restricted flow.
- Carbon
build-up on the nozzle tips, disrupting spray pattern.
- Electrical
or coil failure, affecting signal timing.
- Internal
leaks due to seal deterioration or corrosion.
- Ethanol degradation, which can damage internal components.
Symptoms of injector failure include rough idling, poor acceleration, increased fuel consumption, misfires, or difficulty starting — all signs of inconsistent fuel delivery.
Why Replace with
Precision-Engineered Fuel Injectors?
Replacing worn or clogged injectors restores proper fuel
delivery, maximising power, smoothness, and efficiency. Our performance-grade,
direct-fit injectors are designed to provide consistent fuel flow,
superior atomisation, and long service life.
Key Benefits:
- Restores power and throttle response.
- Improves fuel economy and engine smoothness.
- Prevents misfires, stalling, and hard starts.
- Reduces emissions through cleaner combustion.
- Crafted from high-quality, corrosion-resistant materials.
- Direct-fit design for easy installation and long-term reliability.
Perfect for preventative maintenance or performance upgrades, these injectors deliver manufacturer-level precision and durability for every Porsche engine.
Highlights:
- High-quality
replacement fuel injectors for Porsche models.
- Precision-engineered
nozzles for accurate atomisation.
- Tested for pressure stability and spray accuracy.
- Improves power, efficiency, and emissions performance.
- Compatible with classic and modern Porsche engines.
- Essential for restorations, rebuilds, and tuning projects.
-
Fuel Tank & Parts
-
Fuel Filler Cap / Neck / Flap
-
Fuel Gauge / Level Sender
-
Fuel Filter and Fittings
-
Fuel Pumps
-
Pressure Valves / Sensors / Dampers / Regulators
-
Fuel Lines & Breather Hoses
-
Fuel Accumulator
-
Fuel Expansion Tank
-
Carbon Canister
-
Fuel Carry Cans
-
Fuel Injection / Collection Rail
-
Fuel Distributor / Metering Head
.jpg){kind=link}
Monday-Friday: 8.30am - 5.30pm (GMT)
Saturday: Closed
Sunday: Closed