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Pressure Valves / Sensors / Dampers / Regulators
- 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
Adjustable direct-mount fuel pressure regulator by Adapt Motorsport. It fits the factory fuel rail and provides a 2.0–5.0 bar adjustment range for application-specific pressure settings.
Fits
- Porsche 944 naturally aspirated 1982–85 with M44.02 or M44.04 engines, replacing 94411019801 when adjusted to 2.5 bar
- Porsche 944 naturally aspirated 1985/2–88 with M44.05–10 engines, replacing 94411019803 when adjusted to 2.5 bar
- Porsche 944 Turbo 1986–89 with M44.51, or M44.52 up to engine number 47K 02563, replacing 94411019803 when adjusted to 2.5 bar
- Porsche 924S 1986–88, replacing 94411019803 when adjusted to 2.5 bar
- Porsche 944 naturally aspirated 1988 with M44.40 engine, replacing 94411019804 when adjusted to 3.8 bar
- Porsche 944S with M44.11 up to engine number 46K 02979, or M44.12 up to engine number 46K 61255, 1987–88, replacing 94411019804 when adjusted to 3.8 bar
- Porsche 944 S2 applications, subject to verification of the regulator and hose arrangement already installed
Not directly
suitable for the 944 Turbo M44.52 from engine number 47K 02564 onwards when
fitted with the threaded lower connection used by regulators 944 110 198 05,
944 110 198 06, Bosch 0 280 160 286 or Bosch 0 280 160 287. Installation
requires conversion of the threaded return line to a plain hose and suitable
hose clip.
Check fitment for your specific vehicle (model, year, engine) before ordering. Regulators and hoses may have been changed during earlier repairs, so compare the connection type with the component currently fitted.
What This Product Does
The regulator controls fuel pressure within the injection system. Its adjustable design allows the required operating pressure to be set for the applicable factory system or a compatible tuned installation.
Functions
- Mounts directly to the factory fuel rail using an O-ring connection
- Provides adjustable fuel pressure from 2.0 to 5.0 bar
- Connects to the return hose through an 8 mm barb outlet
- Allows increased fuel pressure where required by a compatible 944 Turbo tuning chip
- Supports straightforward replacement of specified Bosch and Porsche regulators
Technical Details
- Adjustment range: 2.0–5.0 bar
- Fuel return connection: 8 mm hose barb
- Fuel-rail connection: direct O-ring fitting
- Supplied with regulator body, adjustable regulator, outlet fitting, cap screws and lock washers
- Tested by Adapt Motorsport with Bosch 044 fuel pumps; the maximum supported flow rate has not been established
- The regulator is not supplied pre-set and must be adjusted on the vehicle using a suitable fuel-pressure gauge and fuel-rail adaptor
Symptoms of Fault
- Fuel leakage around the original regulator
- Running problems caused by regulator failure
- Difficulty obtaining the required fuel pressure during engine tuning
Why Replacement Matters
Many original regulators fitted to these models are now several decades old and may leak or cease to regulate correctly. Replacement restores an adjustable pressure-control point while retaining a direct connection to the applicable factory fuel rail. Final pressure must be measured and set after installation to match the vehicle and engine specification.
OE Reference
- Porsche 944 110 198 01
- Porsche 944 110 198 03
- Porsche 944 110 198 04
- Bosch 0 280 160 214
- Bosch 0 280 160 227
- Bosch 0 280 160 263
FAQs
- Is the regulator supplied at the correct pressure?
No. It must be measured and adjusted on the vehicle after installation. - What equipment is needed for setup?
A suitable fuel-pressure gauge and fittings for connection to the factory fuel rail are required. - Can it be used with a Bosch 044 fuel pump?
Adapt Motorsport has tested the regulator with Bosch 044 pumps, although the upper fuel-flow limit has not been determined. - Will it replace every 944 Turbo regulator?
No. Later M44.52 installations with a threaded lower regulator port require modification of the return-line connection.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
AMS9050101
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
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 924S 2.5L 1986-87
- Porsche 924S 2.5L 1988
- Porsche 944 2.5L 8V 1982-87
- 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
Fuel Pressure Damper – Fuel System Stabiliser
High-quality replacement fuel pressure damper designed for Porsche 924S and Porsche 944 models.
This component plays a critical role in maintaining stable
fuel pressure within the fuel injection system, reducing pressure fluctuations
and ensuring smooth, consistent fuel delivery to the engine.
Fits:
- Porsche 924S 2.5L 1986-87
- Porsche 924S 2.5L 1988
- Porsche 944 2.5L 8V 1982-87
- 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
for 944 up to engine numbers
>> 41D C454
>> 41D 5672
>> 43E 00229
>> 43E 20061
Diagram ref no 4
Manufactured to OEM specifications, this fuel pressure damper offers precise fitment and dependable performance—ideal for resolving fuel system issues and restoring proper engine operation.
Key Features
• Direct replacement fuel pressure damper
• Suitable for Porsche 924S and 944 models
• Stabilises fuel pressure within injection system
• OEM-style fit and performance
• Durable construction for long-term reliability
• Ideal for maintenance, repair, or restoration
Function and Purpose
The fuel pressure damper helps smooth fuel pressure pulses.
It helps to:
• Maintain consistent fuel pressure
• Reduce pressure fluctuations in the fuel rail
• Improve engine smoothness and drivability
• Support accurate fuel injection
Why Replace Your Fuel Pressure Damper
Over time, internal components can wear or fail.
Common issues include:
• Rough idle or hesitation
• Inconsistent fuel delivery
• Hard starting
• Fuel pressure instability
Replacing the damper restores smooth engine performance and fuel system efficiency.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
94411020106
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 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
Fuel Pressure Damper – Fuel System Stabiliser
High-quality replacement fuel pressure damper designed for Porsche 924S and Porsche 944 models.
This component plays a critical role in maintaining stable
fuel pressure within the fuel injection system, reducing pressure fluctuations
and ensuring smooth, consistent fuel delivery to the engine.
Fits:
- Porsche 924S 2.5L 1986-87
- Porsche 924S 2.5L 1988
- Porsche 944 2.5L 8V 1982-87
- 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
for 944 up to engine numbers
>> 41D C454
>> 41D 5672
>> 43E 00229
>> 43E 20061
Diagram ref no 4
Manufactured to OEM specifications, this fuel pressure damper offers precise fitment and dependable performance—ideal for resolving fuel system issues and restoring proper engine operation.
Key Features
• Direct replacement fuel pressure damper
• Suitable for Porsche 924S and 944 models
• Stabilises fuel pressure within injection system
• OEM-style fit and performance
• Durable construction for long-term reliability
• Ideal for maintenance, repair, or restoration
Function and Purpose
The fuel pressure damper helps smooth fuel pressure pulses.
It helps to:
• Maintain consistent fuel pressure
• Reduce pressure fluctuations in the fuel rail
• Improve engine smoothness and drivability
• Support accurate fuel injection
Why Replace Your Fuel Pressure Damper
Over time, internal components can wear or fail.
Common issues include:
• Rough idle or hesitation
• Inconsistent fuel delivery
• Hard starting
• Fuel pressure instability
Replacing the damper restores smooth engine performance and fuel system efficiency.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
94411020106
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
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
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
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 944 2.7L 8V 1988-89
- Porsche 944S 2.5L 16V 1987-88
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
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
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