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Pressure Valves / Sensors / Dampers / Regulators
Banjo Bolt – M930.66 Engine
High-quality banjo bolt designed for
Porsche 911 Turbo (930) models equipped with the M930.66 engine,
produced between 1984 and 1989.
Fits:
- Porsche 911 1984-1989 3.3L Turbo (930)
Diagram ref no 10
This precision-engineered bolt is used to secure banjo fittings within the fuel system, ensuring a strong and leak-free connection between fuel lines and key components. Designed to operate under the high-pressure conditions of turbocharged engines, it plays a vital role in maintaining system integrity and performance.
Manufactured to OEM specifications, this banjo bolt provides accurate fitment and reliable sealing, making it ideal for restoration, servicing, or repair of classic Porsche 930 Turbo fuel systems.
Key Features
• Banjo bolt for Porsche 911 Turbo (930)
• Designed for M930.66 engine (1984–1989)
• Suitable for high-pressure fuel system applications
• Ensures secure, leak-free connections
• OEM-style fit and specification
• Durable construction for long-term reliability
Function and Purpose
This banjo bolt is an essential fastening component within the fuel system.
It helps to:
• Secure banjo fittings to fuel system components
• Maintain proper fuel sealing under pressure
• Support stable and consistent fuel flow
• Ensure safe and reliable system operation
• Enable correct performance of turbocharged engines
Why Replace Banjo Bolts
Over time, banjo bolts can wear or become compromised due to heat and pressure.
Common issues include:
• Fuel leaks at connection points
• Thread wear or damage
• Corrosion from fuel exposure
• Reduced sealing performance
Replacing worn bolts ensures safe operation and maintains fuel system reliability.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
N0210532
The product you are viewing cross references to these numbers
- Porsche 911 1978-1989 3.3L Turbo (930)
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12 Month Warranty
Worldwide Delivery
Banjo Bolt – M930.66 Engine
High-quality banjo bolt designed for
Porsche 911 Turbo (930) models equipped with the M930.66 engine,
produced between 1984 and 1989.
Fits:
- Porsche 911 1984-1989 3.3L Turbo (930)
Diagram ref no 10
This precision-engineered bolt is used to secure banjo fittings within the fuel system, ensuring a strong and leak-free connection between fuel lines and key components. Designed to operate under the high-pressure conditions of turbocharged engines, it plays a vital role in maintaining system integrity and performance.
Manufactured to OEM specifications, this banjo bolt provides accurate fitment and reliable sealing, making it ideal for restoration, servicing, or repair of classic Porsche 930 Turbo fuel systems.
Key Features
• Banjo bolt for Porsche 911 Turbo (930)
• Designed for M930.66 engine (1984–1989)
• Suitable for high-pressure fuel system applications
• Ensures secure, leak-free connections
• OEM-style fit and specification
• Durable construction for long-term reliability
Function and Purpose
This banjo bolt is an essential fastening component within the fuel system.
It helps to:
• Secure banjo fittings to fuel system components
• Maintain proper fuel sealing under pressure
• Support stable and consistent fuel flow
• Ensure safe and reliable system operation
• Enable correct performance of turbocharged engines
Why Replace Banjo Bolts
Over time, banjo bolts can wear or become compromised due to heat and pressure.
Common issues include:
• Fuel leaks at connection points
• Thread wear or damage
• Corrosion from fuel exposure
• Reduced sealing performance
Replacing worn bolts ensures safe operation and maintains fuel system reliability.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
N0210532
The product you are viewing cross references to these numbers
- Porsche 911 1978-1989 3.3L Turbo (930)
Shop Securely
12 Month Warranty
Worldwide Delivery
Clamp 38/15 – Fuel Pressure Regulator
Mounting Clamp
Sold each
High-quality 38/15 clamp designed for Porsche 928 and 911 turbo models, used to securely mount the fuel pressure regulator.
This clamp plays a critical role in the fuel system by
ensuring the regulator is held firmly in place, maintaining correct positioning
and preventing movement or vibration that could affect fuel pressure stability
and engine performance.
Fits:
- Porsche 911 1978-1989 3.3L Turbo (930)
- Porsche 928 4.5L 1978-82
- Porsche 928S 4.7L 1981-83
Diagram ref no 38
Manufactured to OEM specifications, this clamp offers precise fitment, durability, and resistance to engine bay conditions. Supplied individually, it is ideal for maintenance, repair, or restoration of Porsche fuel systems.
Key Features
• Clamp size 38/15
• Suitable for Porsche 928 and Porsche 911 Turbo
• Part number 99951113202
• Designed for fuel pressure regulator mounting
• Ensures secure positioning and stability
• Prevents vibration-related movement
• Durable and corrosion-resistant construction
• OEM-style fit and performance
• Sold individually
Function and Purpose
This clamp is essential for proper fuel system operation.
It helps to:
• Secure the fuel pressure regulator in position
• Maintain consistent fuel pressure control
• Prevent movement and vibration damage
• Support stable fuel delivery to the engine
• Ensure long-term system reliability
Why Replace Clamps
Clamps can degrade over time due to heat and fuel exposure.
Common issues include:
• Loss of clamping strength
• Corrosion or fatigue
• Regulator movement or misalignment
• Potential impact on fuel pressure stability
Replacing worn clamps ensures secure mounting and protects fuel system performance.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
99951113202
The product you are viewing cross references to these numbers
- Porsche 911 1978-1989 3.3L Turbo (930)
- Porsche 928 4.5L 1978-82
- Porsche 928S 4.7L 1981-83
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12 Month Warranty
Worldwide Delivery
Fits:
Porsche 911 1974-89
Porsche 930 Turbo 1975-89
Porsche 964 3.3L / 3.6L Turbo 1992-94
Click 'Zoom in' for large parts diagram.
Diagram ref no 34
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
90091500401
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 911 1984-1986 3.2L
- Porsche 911 1987-1989 3.2L G50
- Porsche 911 1975-1977 3.0L Turbo (930)
- Porsche 911 1978-1989 3.3L Turbo (930)
- Porsche 964 (911) TURBO 3.3L 1991-93
- Porsche 964 (911) TURBO 3.6L 1991-93
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12 Month Warranty
Worldwide Delivery
Fits:
Porsche 911 SC 1978-83
Porsche 911 (930) Turbo 1978-89
Porsche 924 Turbo / GT 1976-85
Porsche 928 1978-83
Porsche 964 Turbo 3.3L / 3.6L 1991-94
Click 'Zoom in' for large parts diagram.
Diagram ref no 16
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
92811092001
The product you are viewing cross references to these numbers
- Porsche 911 1978-1983 3.0L / SC
- Porsche 911 1978-1989 3.3L Turbo (930)
- Porsche 964 (911) TURBO 3.3L 1991-93
- Porsche 964 (911) TURBO 3.6L 1991-93
- Porsche 924 Turbo 2.0L 1979-81
- Porsche 924 Turbo 2.0L 1982-84
- Porsche 924 Carrera GT 2.0L 1981
- Porsche 928 4.5L 1978-82
- Porsche 928S 4.7L 1981-83
- Porsche 928S2 4.7L 1984-86
Shop Securely
12 Month Warranty
Worldwide Delivery
Fuel Pressure Damper
High-quality replacement fuel pressure damper designed for Porsche 928, 928S, and 911 turbo models.
This component plays a critical role in stabilising fuel
pressure within the fuel injection system, reducing pressure fluctuations and
ensuring smooth, consistent fuel delivery across the engine.
Fits:
- Porsche 911 1987-1989 3.3L Turbo (930) - (engine type 930.66-S, Option Code M148- Engine with increased power output 930.66)
- Porsche 928 4.5L 1980-82 (engine type M2809, M2810, M2811, M2812)
- Porsche 928S 4.7L 1981-83 (engine type M2811, M2812)
for 928
M 800 0378 >>
M 800 5496 >>
M 820 0233 >>
M 820 5025 >>
Diagram ref no 25
Installed within the engine bay fuel system, the damper helps regulate pressure pulses in the fuel rails, supporting balanced fuel distribution and optimal engine performance.
Manufactured to OEM specifications, this fuel pressure damper ensures precise fitment and reliable operation—ideal for maintenance, diagnostics, or restoration.
Key Features
• Direct replacement fuel pressure damper
• Suitable for Porsche 928, 928S, and 911 Turbo models
• Stabilises fuel pressure across fuel rails
• Reduces pressure fluctuations within the system
• OEM-style fit and performance
• Durable construction for long-term reliability
Function and Purpose
The fuel pressure damper smooths pressure pulses within the fuel injection system.
It helps to:
• Maintain consistent fuel pressure
• Reduce fluctuations in the fuel rails
• Improve engine smoothness and drivability
• Support balanced fuel delivery across cylinders
Why Replace Your Fuel Pressure Damper
Over time, internal diaphragms can deteriorate or fail.
Common issues include:
• Rough idle or hesitation
• Uneven fuel delivery
• Hard starting
• Fuel pressure instability
• Reduced engine performance
Replacing the damper restores proper fuel system function and performance.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
92811023102
The product you are viewing cross references to these numbers
- Porsche 911 1978-1989 3.3L Turbo (930)
- Porsche 928 4.5L 1978-82
- Porsche 928S 4.7L 1981-83
Shop Securely
12 Month Warranty
Worldwide Delivery
Fuel Pressure Damper
High-quality replacement fuel pressure damper designed for Porsche 928, 928S, and 911 turbo models.
This component plays a critical role in stabilising fuel
pressure within the fuel injection system, reducing pressure fluctuations and
ensuring smooth, consistent fuel delivery across the engine.
Fits:
- Porsche 911 1987-1989 3.3L Turbo (930) - (engine type 930.66-S, Option Code M148- Engine with increased power output 930.66)
- Porsche 928 4.5L 1980-82 (engine type M2809, M2810, M2811, M2812)
- Porsche 928S 4.7L 1981-83 (engine type M2811, M2812)
for 928
M 800 0378 >>
M 800 5496 >>
M 820 0233 >>
M 820 5025 >>
Diagram ref no 25
Installed within the engine bay fuel system, the damper helps regulate pressure pulses in the fuel rails, supporting balanced fuel distribution and optimal engine performance.
Manufactured to OEM specifications, this fuel pressure damper ensures precise fitment and reliable operation—ideal for maintenance, diagnostics, or restoration.
Key Features
• Direct replacement fuel pressure damper
• Suitable for Porsche 928, 928S, and 911 Turbo models
• Stabilises fuel pressure across fuel rails
• Reduces pressure fluctuations within the system
• OEM-style fit and performance
• Durable construction for long-term reliability
Function and Purpose
The fuel pressure damper smooths pressure pulses within the fuel injection system.
It helps to:
• Maintain consistent fuel pressure
• Reduce fluctuations in the fuel rails
• Improve engine smoothness and drivability
• Support balanced fuel delivery across cylinders
Why Replace Your Fuel Pressure Damper
Over time, internal diaphragms can deteriorate or fail.
Common issues include:
• Rough idle or hesitation
• Uneven fuel delivery
• Hard starting
• Fuel pressure instability
• Reduced engine performance
Replacing the damper restores proper fuel system function and performance.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
92811023102
The product you are viewing cross references to these numbers
- Porsche 911 1978-1989 3.3L Turbo (930)
- Porsche 928 4.5L 1978-82
- Porsche 928S 4.7L 1981-83
Shop Securely
12 Month Warranty
Worldwide Delivery
-
mixture control unit 911 SC 1978-83 107-00
-
mixture control unit 911 TURBO 1978-83 107-05
-
k-jetronic I 911 TURBO 930.60/61, 930.62/66 1978-83 107-20
-
mixture control unit 911 TURBO 930.66/68 1987-89 107-15
-
K-JETRONIC I 911 TURBO 930.66/68 1987-89 107-20
-
K-JETRONIC III 911 TURBO 930.66/68 1987-89 107-35
-
air injection 911 TURBO 930.66/68 1987-89 108-07
-
Mixture control unit 911 TURBO 930.66/68 1984-86 107-15
-
K-JETRONIC I 911 TURBO 930.66/68 1984-86 107-20
-
Air injection 911 TURBO 930.66/68 1984-86 108-07
Fuel Pressure Valves, Sensors, Dampers & Regulators – Consistent Fuel Flow for Porsche Performance
Fuel pressure valves, sensors, dampers, and regulators are critical components in your Porsche’s fuel system, ensuring stable fuel pressure and accurate fuel delivery under all driving conditions. Working together, these parts maintain the delicate balance between performance, efficiency, and emissions control that defines Porsche engineering.
At Design911, we offer a comprehensive range of fuel pressure components — including regulators, dampers, pressure relief valves, and sensors — developed to deliver exceptional reliability and precise fitment for Porsche models across generations. Crafted from high-strength alloys, corrosion-resistant materials, and advanced electronics, our components ensure smooth operation and long service life, even under high heat and vibration.
Whether you’re maintaining a modern 992 or restoring a classic 911, these manufacturer-quality components are essential for achieving consistent fuel delivery and flawless performance.
What Do Fuel Pressure Valves, Sensors & Regulators Do?
These components ensure that the engine receives the correct fuel pressure to maintain stable combustion, power output, and throttle response.
Core Functions:
- Fuel
Pressure Regulator: Maintains steady pressure in the fuel rail to
match engine demand.
- Pressure
Sensor: Monitors and relays fuel pressure data to the ECU for precise
adjustments.
- Fuel
Damper: Smooths out fuel pulses and pressure fluctuations.
- Pressure Valve: Prevents over-pressurisation, protecting the fuel system.
Together, they ensure smooth idling, responsive acceleration, and consistent power delivery — key for both performance and fuel economy.
Why Do Fuel Pressure Components Fail?
Due to constant exposure to heat, vibration, and fuel contaminants, these components can wear out over time, leading to erratic fuel pressure and performance issues.
Common Causes of Failure Include:
- Clogging
or contamination from dirty fuel or debris.
- Internal
diaphragm wear in regulators or dampers.
- Corrosion
from moisture or ethanol-based fuels.
- Electrical
failure in pressure sensors.
- Vacuum leaks causing incorrect fuel pressure readings.
Symptoms of failure include rough idling, poor acceleration, stalling, fuel odours, or a check engine light indicating a pressure-related fault.
Why Replace the Fuel Pressure Components?
Replacing worn or malfunctioning fuel pressure components restores proper system regulation, improving performance, fuel efficiency, and drivability. Our precision-fit, manufacturer-quality replacements are built for accuracy and durability, ensuring long-term reliability.
Key Benefits:
- Restores stable fuel pressure and consistent delivery.
- Improves performance, acceleration, and throttle response.
- Reduces fuel consumption and emissions.
- Prevents damage to injectors and fuel pumps.
- Crafted from corrosion-resistant, heat-tolerant materials.
- Direct-fit compatibility for Porsche models of all eras.
Ideal for regular maintenance, rebuilds, and performance upgrades, these components ensure your Porsche operates with the precision it was designed for.
Highlights:
- Comprehensive selection of Porsche fuel pressure regulators, valves, dampers, and sensors.
- Precision-engineered for exact pressure control and reliability.
- Durable construction for long service life.
- Ensures stable fuel delivery and efficient combustion.
- Perfect for performance tuning, restorations, or maintenance.
- Compatible with classic and modern Porsche models
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