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Pressure Valves / Sensors / Dampers / Regulators
This original Porsche fuel line forms part of the engine fuel delivery system and is used to connect the fuel rail to the diaphragm damper, helping maintain correct fuel flow and pressure control.
Fits:
Porsche 924 S 2.5L 1986 - 1988
Porsche 944-2 2.5L 1985 - 1988
Porsche 944 2.7L 1989
Porsche 944 Turbo 2.5L 1986 - 1991
Porsche 944 Turbo S 2.5L 1988
Diagram ref. 11
It is designed as the fuel line running from the fuel rail to the diaphragm damper on selected Porsche 924S and 944 models. This part is used in the fuel injection system and connects key fuel delivery components in the engine bay.
This part cross-references with earlier Porsche number: 94411041302
Functions
• Connects the fuel rail to the diaphragm damper
• Carries fuel within the engine fuel injection system
• Helps maintain correct fuel delivery to the fuel rail system
• Supports proper fuel pressure damping and fuel system stability
• Provides a factory-correct fuel line route and connection
• Helps reduce fuel pulsation when used with the correct diaphragm damper
• Replaces an aged, cracked, leaking or damaged original fuel line
• Maintains OE Porsche fitment and fuel system specification.
Why Replace This Part?
Fuel lines are exposed to fuel pressure, engine-bay heat, vibration and age-related deterioration. Over time, the original line can harden, crack, seep fuel or deteriorate at the fittings. Because this line carries fuel in the engine bay, any sign of leakage or fuel smell should be inspected immediately. Replacing the old line with a Genuine Porsche OE fuel line helps restore the correct connection between the fuel rail and diaphragm damper, supporting safe fuel delivery and original Porsche fuel system reliability.
When to Replace This Part
• If there is a fuel smell in the engine bay
• If the line is cracked, brittle, swollen or visibly damaged
• If fuel is seeping or leaking from the hose or fittings
• During fuel rail, diaphragm damper or fuel pressure system repairs
• During fuel injection system restoration or preventative maintenance
• If fittings are corroded, seized or damaged
• When replacing old, non-original or incorrectly routed fuel hose
• Before recommissioning a stored Porsche 924S or 944.
Where It Fits on the Car
This fuel line fits in the engine bay fuel injection system, running between the fuel rail and the diaphragm damper. It is shown in Porsche fuel injection / collection rail diagrams and is commonly identified as the fuel line from the fuel rail to the diaphragm damper.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
94411041303
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 944 Turbo 2.5L 8V 1985-88
- Porsche 944 Turbo 2.5L 8V 1989-91
- Porsche 944 Turbo S 2.5L 8V 1988
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12 Month Warranty
Worldwide Delivery
This OE Match fuel line is a replacement fuel system hose/pipe used between the fuel rail and diaphragm damper on Porsche 924S, 944 2.5L / 2.7L, and 944 Turbo models from 1985 to 1991. It is designed to match the original-style fitment and function, helping restore safe and reliable fuel delivery.
Fits:
Porsche 924 S 2.5L 1986 - 1988
Porsche 944-2 2.5L 1985 - 1988
Porsche 944 2.7L 1989
Porsche 944 Turbo 2.5L 1986 - 1991
Porsche 944 Turbo S 2.5L 1988
Diagram ref. 11
The fuel line connects the fuel rail to the diaphragm damper within the fuel injection system. The diaphragm damper helps smooth pressure pulses in the fuel circuit, while the line carries fuel securely between the connected components to support stable fuel pressure and consistent engine running.
This part cross-references with earlier Porsche number: 94411041302
Functions
• Connects the fuel rail to the diaphragm damper
• Carries fuel through the injection system
• Supports stable fuel pressure delivery
• Helps reduce fuel pressure pulsation through the damper circuit
• Replaces aged, leaking, cracked, or damaged original fuel lines
• Helps restore safe fuel system sealing
• OE Match replacement for Porsche fuel system repair or restoration.
Why Replace This Part?
Fuel lines can deteriorate over time due to fuel exposure, heat, pressure, vibration, and age. The hose or pipework can crack, harden, seep, corrode, or leak, while fittings may become worn or seized. A damaged fuel line can cause fuel smell, fuel pressure loss, poor running, starting issues, or unsafe fuel leakage. Replacing the line helps restore fuel system safety, correct fuel pressure control, and reliable engine performance.
When to Replace This Part
• The fuel line is cracked, leaking, perished, corroded, or damaged
• Fuel smell or seepage is present in the engine bay
• The fittings or unions are worn, seized, or heavily corroded
• Fuel pressure instability or poor running is suspected
• The fuel rail or diaphragm damper is being replaced
• The fuel injection system is being serviced or recommissioned
• The vehicle is undergoing Porsche 924S or 944 fuel system restoration.
Where it fits on the car
This fuel line fits within the engine bay fuel injection pipework, connecting the fuel rail to the diaphragm damper. It forms part of the fuel pressure control circuit and should be installed according to the factory fuel system routing.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
94411041303
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 944 Turbo 2.5L 8V 1985-88
- Porsche 944 Turbo 2.5L 8V 1989-91
- Porsche 944 Turbo S 2.5L 8V 1988
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12 Month Warranty
Worldwide Delivery
Fits:
Porsche 944 - 1983 to 1988
Porsche 944 S - 1987 to 1988
Porsche 944 S2 - 1989 to 1991
Porsche 944 turbo - 1987 to 1989
Porsche 924S - 1986 to 1988
Replaces Porsche part numbers 94411020103, 94411020104, 94411020106, 94411020107, 94411020100
Direct replacement for Bosch 0280161015, 0280161036
A direct replacement for the no longer available OEM Bosch fuel pressure dampers used in many Porsche, Volvo, Mercedes and other makes.
Our fuel pressure damper uses the latest OEM pulse damper to be a direct replacement to the aging and leaking fuel pressure dampers. This simple and elegant design uses steel O-Ring boss sealing adapters to the manifold with multiple options for hose connections.
Easy to replace damper with Bosch OEM reliability
Spare outlet port for fuel pressure sensor.
Kit includes
- Fuel pressure damper body x 1
- Pressure damper x 1
- Custom adapter fittings to fit to Porsche OEM hose ends x 2
- ORB Plug x 2
Please Note
This product comes fully assembled and ready to install
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
94411020107
The product you are viewing cross references to these numbers
- 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
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12 Month Warranty
Worldwide Delivery
Fits:
Porsche 924S 1986-87
Porsche 944 2.5L 1985-88
Porsche 944 Turbo 1986-89 Chassis no >>
47K 02563
Click 'Zoom in' for large parts diagram.
Diagram ref no 3
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
94411019803
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 944 Turbo 2.5L 8V 1985-88
- Porsche 944 Turbo 2.5L 8V 1989-91
- Porsche 944 Turbo S 2.5L 8V 1988
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12 Month Warranty
Worldwide Delivery
Fits:
Porsche 924S 1986-87
Porsche 944 2.5L 1985-88
Porsche 944 Turbo 1986-89 Chassis no >>
47K 02563
Click 'Zoom in' for large parts diagram.
Diagram ref no 3
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
94411019803
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 944 Turbo 2.5L 8V 1985-88
- Porsche 944 Turbo 2.5L 8V 1989-91
- Porsche 944 Turbo S 2.5L 8V 1988
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12 Month Warranty
Worldwide Delivery
Fits:
Porsche 924S 1986-87
Porsche 944 2.5L 1985-88
Porsche 944 Turbo 1986-89 Chassis no >>
47K 02563
Click 'Zoom in' for large parts diagram.
Diagram ref no 3
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
94411019803
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 944 Turbo 2.5L 8V 1985-88
- Porsche 944 Turbo 2.5L 8V 1989-91
- Porsche 944 Turbo S 2.5L 8V 1988
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12 Month Warranty
Worldwide Delivery
Fits:
Porsche 944S 2.5L 1987-88
Porsche 944 2.7L 1989 (engine no >>46K 02979 and >>46K 61255)
Click 'Zoom in' for large parts diagram.
Diagram ref no 3
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
94411019804
The product you are viewing cross references to these numbers
- Porsche 944 2.7L 8V 1988-89
- Porsche 944S 2.5L 16V 1987-88
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12 Month Warranty
Worldwide Delivery
Fits:
Porsche 944S 2.5L 1987-88
Porsche 944 2.7L 1989 (engine no >>46K 02979 and >>46K 61255)
Click 'Zoom in' for large parts diagram.
Diagram ref no 3
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
94411019804
The product you are viewing cross references to these numbers
- Porsche 944 2.7L 8V 1988-89
- Porsche 944S 2.5L 16V 1987-88
Shop Securely
12 Month Warranty
Worldwide Delivery
Fits:
Porsche 944S2 3.0L 1989-91
Porsche 944 2.7L 1989 (chassis no 46K 02980>> and 46K 61256>>)
Porsche 968 1992-95
Click 'Zoom in' for large parts diagram.
Diagram ref no 3
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
94411019806
The product you are viewing cross references to these numbers
- Porsche 944 2.7L 8V 1988-89
- Porsche 944S2 3.0L 16V 1989-91
- 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
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12 Month Warranty
Worldwide Delivery
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
Monday-Friday: 8.30am - 5.30pm (GMT)
Saturday: Closed
Sunday: Closed