Fuel pump to fuel filter hose. Porsche 924S / 944  ❭  94435604114

Porsche 924S & 944 Fuel Hose - Fuel Pump to Fuel Filter

Reliable Fuel Delivery for Classic Transaxle Porsche Models

The fuel hose from the fuel pump to the fuel filter is a critical component of the Porsche 924S and 944 fuel system. This hose transfers pressurised fuel directly from the fuel pump to the fuel filter, ensuring clean and consistent fuel supply to the engine.

Maintaining the integrity of this hose is essential for stable fuel pressure, smooth engine operation and overall vehicle safety.

Fits:

• Porsche 924S 2.5L 1986-87
• Porsche 924S 2.5L 1988
• Porsche 944 2.5L 8V 1982-87

Diagram ref no 12

What This Fuel Hose Does

In the Porsche 924S and 944 fuel system, fuel is drawn from the tank by the electric fuel pump and pushed through a dedicated hose into the fuel filter. The fuel filter removes contaminants before fuel continues to the rail and injectors.

The fuel pump to filter hose is responsible for:

• Carrying pressurised fuel safely from pump to filter
• Maintaining consistent fuel pressure under load
• Preventing leaks in a high-pressure section of the system
• Supporting smooth engine idle and acceleration

If this hose fails, fuel delivery can become inconsistent or unsafe.

Why Fuel Hoses Fail on 924S and 944 Models

Fuel hoses on classic Porsche transaxle cars are often original or decades old. Over time, exposure to heat, vibration and modern ethanol-blended fuels can cause deterioration.

Common failure causes include:

• Age-related rubber hardening and cracking
• Internal breakdown from fuel permeation
• Swelling caused by ethanol content in modern fuels
• Heat cycling in the engine bay
• Abrasion against surrounding components

Because this hose operates under pressure, even minor cracks or weakness can result in leaks or pressure loss.

When You Should Replace This Fuel Hose

You should replace the fuel pump to fuel filter hose if you notice:

• Visible cracks, splits or softness in the hose
• Fuel smell near the rear or underside of the vehicle
• Dampness or seepage around hose connections
• Hesitation or stumbling under acceleration
• Poor fuel pressure readings
• The hose appears original or aged on a classic 924S or 944

Preventative replacement is strongly recommended during fuel pump or fuel filter service, especially on vehicles over 20 years old.

Replacing this hose helps prevent fuel leaks, improves engine reliability and protects against potential fire risk.

Quality Porsche Fuel System Parts from Design911

At Design911, we supply high-quality replacement fuel hoses designed to meet OEM standards for classic Porsche models. This fuel hose ensures correct fitment, proper pressure handling and long-term durability.

Using the correct specification hose protects your fuel system, improves reliability and maintains safe vehicle operation.

Key Benefits at a Glance

• Direct replacement for Porsche part 94435604112
• Connects fuel pump to fuel filter securely
• Maintains stable fuel pressure
• Reduces risk of leaks and fuel system failure
• Suitable for Porsche 924S and 944
• Ideal for maintenance, restoration and preventative repair       

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