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Pressure Valves / Sensors / Dampers / Regulators
- Porsche 911 1965-1968 2.0L / 912 SWB (F)
- Porsche 911 1968-1973 2.2L / 2.4L / 2.7L RS LWB (F)
- 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 911 1984-1986 3.2L
- Porsche 911 1987-1989 3.2L G50
A fuel supply hose that carries pressurised fuel from the fuel pressure regulator to the diaphragm damper (fuel accumulator / damper) in the L-Jetronic injection system of certain classic Porsche 911 models. The damper helps smooth fuel pressure pulses and supply consistent fuel pressure to the injectors.
Fits:
Porsche 911 Carrera 1984 - 1989
Diagram ref no 19
This fuel line delivers a consistent, pressurised flow of fuel from the regulator to the damper without leaks or pressure loss. Its modern fuel-resistant construction ensures durability against petrol, vapour, and ethanol-blended fuels while maintaining stable fuel pressure for reliable injector performance and preventing issues such as hesitation or lean running. By replacing old, hardened, or cracked hoses, it restores the safety and efficiency of the fuel system. Designed with the correct internal diameter and fittings, it provides proper fuel delivery, smooths pressure fluctuations, and offers long-term resistance to heat, vibration, and chemical exposure for dependable operation on 911 engines.
Over time, fuel hoses deteriorate: rubber hardens, cracks or swells; internal layers degrade; fittings loosen. On a fuel-line this can lead to:
• Fuel leaks - hazard to engine bay and fire risk
• Pressure loss or instability - causing poor fuel delivery, misfires or rough running
• Permeation or fuel vapour leakage - potentially causing poor cold start, smell, or regulatory issues
Replacing the old hose with a fresh line ensures safe, leak-free fuel flow, correct pressure regulation, and reliable injector performance - essential for performance, reliability, and safety on an air-cooled Porsche 911.
You should replace this fuel line if:
• The original hose is cracked, swollen, hardened, or leaking
• There are signs of fuel smell or seepage around the regulator / damper area
• You’re performing fuel system maintenance, pressure regulator overhaul or damper replacement
• You are upgrading to modern fuels (higher ethanol content or aggressive blends)
• You notice fuel delivery issues - hesitation, poor idle, uneven fuel pressure
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
93011041104
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 928 4.5L 1978-82
- Porsche 928S 4.7L 1981-83
Fits:
Porsche 911 SC 3.0L 1975-83
Having problems starting your 911 when it's cold? It could be the warm up regulator located on the upper left hand side of the engine. This simple device is responsible for controlling the amount of fuel delivered to the engine during its warm-up period. The pressure acting upon the top of the control plunger varies depending on the engine temperature and provides an effective method of enrichment. The control pressure is tapped off from the primary pressure circuit in the metering head's lower chamber through a tiny restrictive hole which gives it the ability to differentiate between the two pressures. A flexible pipe then connects the control plunger gallery to the warm-up-regulator and returns back to the metering head to a connection next to the primary pressure regulator's transfer valve. This valve is in the circuit to close the fuel from the control circuit when the engine is off, avoiding the total loss of system pressure while the engine is stationary.
- The surcharge for this reconditioned part will be refunded when the exchange unit is received and approved by us and the relevant manufacturer.
- Please note, surcharge refunds often take an average of 6 to 8 weeks to be approved by the manufacturer.
- Acceptance of the exchange part is at the manufacturer's discretion, based on the part being fit for reconditioning.
- All surcharges and exchanges are subject to our terms and conditions.
PLEASE NOTE:
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
PCG606105JX
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
