Citroen Relay 35L III Intercooler Pipe Hose Line Diesel Engine 7800537500

Citroen Relay 35L III Intercooler Pipe Hose Line is a turbocharging system component designed for Diesel engines, responsible for the efficient routing of compressed air between the turbocharger and the intercooler. A properly selected hose from the Lines, Hoses and Pipes category helps maintain stable engine operating parameters, reduce boost pressure drops, and ensure consistent performance characteristics. It is a practical solution for users who want to restore the proper operation of the intake system in a Citroen Relay 35L III without unnecessary modifications.

Specifications and technical data

• SKU: 7800537500
• Mark: Citroën
• Condition: Used
• OEM Part Number: 7800537500
• Fuel type: Diesel
• Category: Hoses, Lines & Pipes

Function and role in the turbocharging system

The intercooler hose in a Citroen Relay 35L III is responsible for transporting compressed air from the turbocharger to the charge air cooler and then further towards the intake manifold. A properly selected hose:

• reduces the risk of leaks in the turbocharging system,
• stabilizes the air pressure reaching the cylinders,
• supports smooth operation of the diesel engine under various loads,
• helps maintain proper combustion parameters and engine refinement.

For diesel-powered engines, the tightness and correct cross-section of the intercooler hose have a direct impact on dynamics, fuel consumption, and exhaust smoke levels.

Designed for Citroën Relay 35L III Diesel engines

The presented hose has been designed for use in the intake system of the Citroen Relay 35L III with a Diesel engine. This means it is matched to the operating characteristics of the diesel unit, including:

• resistance to typical pressure ranges generated by the turbocharger,
• adaptation to compressed air temperatures before and after the intercooler,
• geometry adapted to the engine bay layout of this model.

As a result, this component can be used as a replacement for a damaged or leaking hose without the need to modify other intake system components.

Product characteristics and benefits of installation

The Citroen Relay 35L III intercooler pipe hose from the Lines, Hoses and Pipes category is a solution that allows for restoring proper airflow in the turbocharging system. Using the correct component in this area translates into:

• more predictable throttle response,
• reduction of the risk of power loss resulting from boost air leakage,
• limitation of engine control unit errors related to incorrect boost pressure,
• stable operation of the engine across the full rev range.

This is particularly important in commercial vehicles, where maintaining the efficiency of the turbocharging system affects operating economy and driving comfort under full load.

Condition, fitment, and installation aspects

The component comes from the group of original solutions used in Citroën vehicles, which promotes proper fitment to the factory intake system. The used nature of the part allows for economical repair while maintaining compliance with the vehicle's design. In practice, this means:

• preservation of the original hose routing geometry in the engine bay,
• possibility of installation in place of the factory component without additional modifications,
• easier maintenance of connection tightness with the turbocharger and intercooler.

Before installation, it is recommended to perform a standard check of the condition of the working surfaces and mounting clamps to ensure proper sealing of the entire section of the system.

Technical support and part selection

When selecting an intercooler hose for a Citroen Relay 35L III, it is worth paying attention to compatibility with the specific diesel engine version and intake system configuration. It is helpful to compare the shape, connection diameters, and mounting method with the component currently installed in the vehicle. If necessary, you can use technical advice based on manufacturer markings and catalog data, which facilitates the selection of the correct component from the Lines, Hoses and Pipes group.

If you are planning a comprehensive repair or upgrade of the engine area in your Citroen and need other components from the same group, such as intake hoses, vacuum hoses, or cooling system pipes, check the available parts in the Citroen Lines, Hoses and Pipes category.

Additional information on the practical approach to used components in modern cars, selection principles based on manufacturer markings, and compatibility issues is provided in the Global Parts guide: Used automotive electronics on board – why is it worth choosing second-hand ECU modules and sensors?.