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Fits:
Porsche 964 Carrera 2 - 1989 to 1994
Porsche 964 Carrera 4 - 1989 to 1994
Porsche 964 RS - 1991 to 1993
Porsche 928 S4 / GTS - 07/1988 to 1994
Replaces Bosch 0280160297, and Porsche 92811019825 & 92811019804 & 92811019803 - 3.8 Bar (engine running, no vacuum line connected)
A direct replacement for the OEM Bosch fuel pressure regulators used in many Porsche, Volvo, Mercedes and other makes.
Our fuel pressure regulator uses the latest Bosch regulators and by default is shipped with a 3.8 bar regulator to be a direct replacement. This simple and elegant design uses steel O-Ring boss sealing adapters to the manifold with multiple options for hose connections.
Easy to replace regulator with Bosch OEM reliability
3 outlet ports for flexible hose, fitting, gauge, sensor port options
The Bosch regulator is rated to a maximum fuel flow of 200lpm.
Kit Includes:
- Porsche 964 / late 928 OEM fitting kit
- Fuel pressure regulator body x 1
- Bosch Fuel pressure regulator x 1
- Option for adjustable fuel pressure regulator instead of fixed regulator
- Custom adapter fittings to fit to Porsche OEM hose ends x 3
- ORB Plug x 1
* Mounting bracket not included. Fits to factory regulator bracket or our bracket if required for additional cost
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
92811019825
The product you are viewing cross references to these numbers
- Porsche 964 (911) C2 1989-93
- Porsche 964 (911) C4 1989-93
- Porsche 964 (911) RS 3.6L 1991-93
- Porsche 964 (911) RS 3.8L 1991-93
- Porsche 928S4 5.0L 1987-92
- Porsche 928GT 5.0L 1989-91
- Porsche 928GTS 5.4L 1992-95
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Porsche Fuel Pressure Regulators - Precision Fuel Delivery Control
Fuel Pressure Regulators control and stabilise fuel pressure within the injection system, ensuring the correct amount of fuel is delivered to the engine under all operating conditions. Accurate fuel pressure is critical for combustion efficiency, throttle response, and engine safety—particularly in tuned or high-performance Porsche engines.
Available from Design911, Porsche fuel regulators include OEM replacements and performance upgrades designed to maintain consistent fuel pressure, support increased fuel demand, and improve reliability in performance-driven applications.
What Do Fuel Regulators Do?
Fuel regulators maintain controlled and consistent fuel pressure across the fuel system.
Core Functions:
- Regulate fuel pressure to injectors.
- Ensure consistent fuel delivery under varying load.
- Protect injectors and fuel pump from pressure spikes.
- Support accurate air-fuel ratios.
- Maintain stable engine performance and efficiency.
Precise fuel pressure is essential for reliable engine operation.
Why Do Fuel Regulators Fail?
Over time, fuel pressure regulators can degrade due to heat,
contamination, and mechanical wear. Common failure causes include:
- Diaphragm fatigue or rupture.
- Internal spring wear affecting pressure control.
- Fuel contamination causing blockage or sticking.
- Heat exposure in engine bay environments.
- Increased fuel demand from tuned engines exceeding stock capacity.
Failing regulators can lead to poor performance, fuel starvation, rich running, or engine damage.
Why Upgrade to a Performance Fuel Regulator?
Performance fuel regulators are engineered to handle higher fuel demands with greater precision.
Upgrade Benefits:
- More accurate and stable fuel pressure control.
- Improved support for tuned or modified engines.
- Enhanced reliability under high load and RPM.
- Compatibility with upgraded injectors and fuel pumps.
- Essential for safe performance tuning and engine builds.
Upgrading ensures the fuel system can meet increased performance demands safely.
Highlights
- Porsche fuel pressure regulator upgrades
- Precision fuel delivery and pressure control
- Designed for tuned and high-performance engines
- Improved reliability under high load
- Ideal for performance builds and rebuilds
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Saturday: Closed
Sunday: Closed