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Pressure regulator to diaphragm damper fuel. Porsche 911 ❭ 93011041104
- 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Related, superseded, cross reference or alternative numbers for comparison.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
- Porsche 911 1978-1983 3.0L / SC
- Porsche 911 1978-1989 3.3L Turbo (930)
- Porsche 964 (911) TURBO 3.3L 1991-93
- Porsche 964 (911) TURBO 3.6L 1991-93
- Porsche 924 Turbo 2.0L 1979-81
- Porsche 924 Turbo 2.0L 1982-84
- Porsche 924 Carrera GT 2.0L 1981
- Porsche 928 4.5L 1978-82
- Porsche 928S 4.7L 1981-83
- Porsche 928S2 4.7L 1984-86

Fits:
Porsche 911 SC 1978-83
Porsche 911 (930) Turbo 1978-89
Porsche 924 Turbo / GT 1976-85
Porsche 928 1978-83
Porsche 964 Turbo 3.3L / 3.6L 1991-94
Click 'Zoom in' for large parts diagram.
Diagram ref no 16
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
92811092001
The product you are viewing cross references to these numbers
- Porsche 911 1984-1986 3.2L
- Porsche 911 1987-1989 3.2L G50
- Porsche 928 4.5L 1978-82
- Porsche 928S 4.7L 1981-83
- Porsche 928S2 4.7L 1984-86
Fits:
Porsche 911 3.2 Carrera - 1984 to 1989
Porsche 928 - 1980 to 1986 (non CIS)
Replaces Bosch 0280160262, 0280160232, 0280160215, Porsche 92811019802, 92811019801, 92811019800, 92811019826 (2.5 Bar no vacuum line connected)
Most of these regulators are original and now nearly 40 years old so they are prone to leak or fail causing all sorts of running and tuning issues. They are easy to replace, albeit a little bit fiddly being at the front of the manifold for the 3.2ltr engine. To suit the lower operating fuel pressure of the 3.2 Motronic, we use an adjustable fuel pressure regulator. This simple and elegant design uses steel O-Ring boss sealing adapters to the manifold.
Easily replaceable fuel pressure regulator.
Spare outlet for fuel pressure gauge or sensor.
The adjustable fuel pressure regulator has been tested with Bosch 044 fuel pumps, but the upper limit of fuel flow rate has not been tested.
Kit Includes:
- Porsche 911 3.2 Carrera / early 928 (non CIS) OEM fitting kit - SPA adjustable fuel pressure regulator
- Fuel pressure regulator body x 1
- 2.0 to 5.0 adjustable fuel pressure regulator instead of fixed regulator x 1
- Adapter fittings to fit OEM hose and fuel rail ends x 2
- Hose Tail fitting to fit factory return line x 1
- ORB Plug x 1
This kit must use the adjustable fuel pressure regulator as Bosch does not produce a standard 2.5bar pressure regulator in this form.
Please Note
Other fittings and options such as fuel pressure sensors, or fuel pressure gauges available upon request.
We have also developed fuel pressure dampers for the 3.2 and 928 engines, check out our site for the product details.
The fuel pressure regulator needs to be adjusted and set on the car after installation to ensure the operating conditions meet the factory specifications. A fuel pressure gauge and fittings to adapt to the factory fuel rails is required to be able to complete this procedure. The regulators are not shipped pre-set to the 2.5bar operating pressure.
We can also provide a solution for early 944 replacing Porsche part number 94411019801, Bosch part number 0280160214,
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
92811019826
The product you are viewing cross references to these numbers
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