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Pressure Valves / Sensors / Dampers / Regulators
- Porsche 924S 2.5L 1988
- Porsche 944 2.7L 8V 1988-89
- Porsche 944S2 3.0L 16V 1989-91
- Porsche 944 Turbo 2.5L 8V 1989-91
- Porsche 968 3.0L 1992-94
- Porsche 968 Sport 3.0L 1994-95
- Porsche 968 CS 3.0L 1993-95
Adjustable direct-mount fuel pressure regulator by Adapt Motorsport. It attaches to the factory fuel rail and provides a 2.0–5.0 bar adjustment range with an M14 threaded return outlet.
Fits
- Porsche 944 naturally aspirated 1988 with M44.02 or M44.04 engine, replacing 94411019805 when set to 2.5 bar
- Porsche 944 Turbo 1988–92 with M44.52 engine, replacing 94411019805 when set to 2.5 bar
- Porsche 944 naturally aspirated 1988–89, 944 S2 1989–92 and 968 1992–94 with M44.11, M44.12, M44.41 or M44.43/44 engines, replacing 944 110 198 06 when set to 3.8 bar
This regulator is intended only for installations using the threaded lower return connection. It is not suitable for vehicles fitted with the 5/16" hose-barb connection at the bottom of the regulator.
Check fitment for your specific vehicle (model, year, engine) before ordering. Previous repairs may have introduced a different regulator or hose arrangement, so compare the installed connection with this M14 version.
What This Product Does
The regulator controls fuel pressure within the injection system. Its adjustable mechanism allows pressure to be configured for the relevant standard application or for a compatible tuned installation requiring a different setting.
Functions
- Attaches directly to the original fuel rail through an O-ring connection
- Provides adjustable pressure between 2.0 and 5.0 bar
- Connects to the fuel return line through an M14 threaded fitting
- Permits pressure adjustment for compatible Porsche 944 Turbo tuning configurations
- Replaces specified Porsche and Bosch fixed-pressure regulators
Technical Details
- Pressure adjustment range: 2.0–5.0 bar
- Fuel return connection: M14 threaded outlet fitting
- Fuel-rail connection: direct O-ring mounting
- Kit includes the regulator body, adjustable regulator, M14 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
- Supplied without a preset pressure setting
Symptoms of Fault
- Fuel leaking from the original regulator
- Engine running problems associated with incorrect or unstable fuel pressure
- Difficulty obtaining the required pressure during tuning or diagnosis
Why Replacement Matters
Many original regulators are now affected by age-related leakage or failure. This adjustable unit renews the pressure-control component while retaining direct fitment to the applicable factory rail. After installation, pressure must be measured and set on the vehicle to the specification required by its engine and fuel system.
OE Reference
- Porsche 944 110 198 05
- Porsche 944 110 198 06
- Bosch 0 280 160 286
- Bosch 0 280 160 287
FAQs
- Is the regulator supplied pre-set?
No. It must be adjusted after installation using an appropriate fuel-pressure gauge and fittings for the factory rail. - Can it be used with a Bosch 044 fuel pump?
Adapt Motorsport has tested it with Bosch 044 pumps, but the upper flow limit has not been determined. - Will it fit a hose-barb return connection?
No. This version uses an M14 threaded outlet and is not suitable for the regulator arrangement with a 5/16" lower barb. - Should the installed regulator be checked before ordering?
Yes. Earlier repairs may have changed the regulator, hoses or connection type from the original vehicle specification.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
AMS9050104
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
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
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
