Porsche Genuine Fuel Line - Fuel Pressure Regulator to Diaphragm Damper (84-89)

Burkken Auto Parts offers this Genuine Porsche fuel line connecting the fuel pressure regulator to the diaphragm pressure damper on the Porsche 911 (1984-1989). Part number 930-110-411-04 is the OEM factory fuel line that routes fuel from the pressure regulator to the damper unit in the L-Jetronic fuel injection circuit of the 3.2 Carrera engine. This line carries pressurized fuel and must maintain integrity under continuous fuel pressure and heat cycling. A cracked, kinked, or leaking fuel line at this location is a fire safety hazard and will cause fuel system pressure loss, affecting injection system performance and potentially creating a dangerous fuel leak under the engine lid.

Key Features

• Genuine Porsche OEM fuel line from pressure regulator to diaphragm damper, 911 (1984-1989)
• Correct tube diameter, length, and end fittings for direct OEM installation
• Manufactured to withstand continuous fuel pressure and heat cycling
• Replace immediately if any cracking, seeping, or fuel odor is detected
• Fire safety critical - do not delay replacement of a deteriorated fuel line

Fitment

Porsche 911 Carrera 3.2 with L-Jetronic fuel injection (1984-1989)

Frequently Asked Questions

Is a cracked fuel line on my Porsche 911 a fire risk?
Yes. Any fuel line that is cracking, seeping fuel, or showing deterioration is a fire safety hazard and must be replaced immediately. Fuel leaks near the hot engine case of an air-cooled 911 create a serious risk of engine compartment fire. Do not delay replacement of any deteriorated fuel line.

What are the signs of a failing fuel line on a 1984-1989 Porsche 911 Carrera?
Look for visible cracks in the rubber sections, fuel staining or wet spots at fittings and along the line, a fuel odor in the engine compartment, fuel pressure loss under load, and hard starting caused by fuel pressure bleed-down after shutdown.

Should I replace all fuel lines at the same time?
Yes. On a 1984-1989 911 Carrera with original fuel lines, all rubber sections should be replaced as a set. Fuel lines degrade from age, heat, and fuel composition, and replacing only one line typically reveals additional aged lines that need attention.

Can I use a generic fuel hose for this application?
Not recommended. The Porsche OEM fuel line (930-110-411-04) is engineered to the correct diameter, pressure rating, and length for this specific application with factory-correct end fittings. Generic fuel hose may not meet the pressure and temperature requirements of the L-Jetronic system and may not seal correctly at the original fittings.

What other fuel system parts should I replace at the same time?
When replacing this fuel line, also replace the fuel pressure regulator (928-110-198-26), the fuel pressure damper (930-110-602-30), the fuel filter, and inspect all other fuel lines for a complete and safe fuel system refresh.

Why Buy from Burkken Auto Parts?

Burkken Auto Parts treats fuel system safety components with the urgency they deserve. We stock Genuine Porsche fuel lines for the 1984-1989 911 Carrera at guaranteed below-competitor pricing. A deteriorated fuel line is not a repair to defer - order the correct Genuine OEM line from a Porsche specialist today.