Peugeot 207 Diesel 1.6 HDI Fuel Pipe Overflow Line Hose 1574R2 9653811880

Peugeot 207 1.6HDI Fuel Return Hose is a component of the diesel fuel supply system, responsible for the safe return of excess fuel from the injectors back to the system. A correctly selected return hose stabilizes injector operation, reduces the risk of air ingress, and supports the smooth running of a diesel engine.

Specifications and technical data

• SKU: 1574R2
• Mark: Peugeot
• Condition: Used
• OEM Part Number: 1574R2
• Substitutable numbers: 1574R2, 9653811880, 96 538 118 80
• Fuel type: Diesel
• Category: Fuel Injectors

Application in the Peugeot 207 1.6 HDI Injection System

The fuel return hose operates in close proximity to the diesel engine injectors, draining excess diesel fuel back into the system. In the 1.6 HDI unit, this is crucial for:

• maintaining stable fuel pressure at the injector rail,
• proper injector cooling during operation under load,
• reducing engine vibrations and uneven idling,
• minimizing the risk of fuel leaks in the cylinder head area.

A functional return hose is particularly important in modern diesel engines, where the precision of fuel delivery directly affects running smoothness, fuel consumption, and exhaust emissions.

Construction and Technical Characteristics

The offered component belongs to the category of Injector Nozzles, meaning it is designed for operation in the immediate vicinity of diesel engine injectors. The hose's construction is engineered for:

• resistance to the operating pressure of the diesel engine's injection system,
• chemical resistance to diesel fuel and performance additives,
• dimensional stability across a wide range of engine operating temperatures.

This allows the return hose to operate under the demanding thermal and mechanical conditions typical of the Peugeot 207 engine bay with the 1.6 HDI unit.

Benefits of Using an Original Fuel Return Hose

Using the correct fuel return hose in a diesel fuel system translates into specific, measurable operational benefits:

• stable injector operation – uniform return of excess fuel limits pressure fluctuations and improves engine running smoothness,
• reduced risk of leaks – proper fit of the ends and diameters minimizes the possibility of fuel leaks,
• better injection system diagnostics – a sealed return hose facilitates the assessment of the injectors' condition,
• maintenance of correct combustion parameters – proper fuel return supports uniform fuel delivery by the injectors.

This solution is particularly important in direct injection diesel engines, where even minor leaks in the return circuit can cause starting difficulties, fluctuating RPMs, or power loss.

Professional Selection and Injection System Diagnostics

When replacing the fuel return hose, it is advisable to simultaneously assess the condition of the injectors themselves and other fuel system components. A helpful guide describing typical symptoms and consequences of diesel injector failures can be found in the article “Diesel Injector Faults – How to Recognize Them and What Neglecting Them Entails”.

If you wish to broaden your knowledge of fuel system construction and operation, it is also worth consulting a practical guide covering injectors, pumps, and fuel tanks – check out the guide on the fuel system, selecting components by VIN/OEM, and refurbishment.

Other Peugeot Injector Nozzles – Expansion and Service

If you are planning a comprehensive fuel system service and require other Peugeot injector nozzles, use the dedicated category in our store. Check the available Peugeot injector nozzles to select compatible components for your vehicle and perform a cohesive service of the entire system.