BMW E90 E91 M57N2 Engine Charge Air Line Intercooler Pipe Hose Gravity 7793117

Description

BMW E90 E91 M57N2 Engine Charge Air Line Intercooler Pipe Hose is an original intake system component responsible for the efficient connection between the turbocharger and the intercooler. Thanks to its factory geometry and precise fitment for the M57N2 unit, it ensures stable airflow, which translates into proper engine operation under load and a reduction in boost pressure drops. This solution is intended for users who want to maintain consistency with the original BMW design and avoid issues with leaks in the boost system.

Specifications and technical data

• SKU: 7793117-1
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 7793117
• Substitutable numbers: 11618506078, 8506078, 11617798440, 7798440, 11617793117, 7793117, 11617798102, 7798102, 11617798101, 7798101
• Category: Intercoolers

Purpose and function in the boost system

The described hose is a component of the air path between the compressor and the intercooler in the M57N2 diesel engine used in the BMW 3 Series E90/E91. Its task is to safely and tightly route compressed air, which then travels to the intercooler to lower its temperature before entering the intake manifold. A properly selected hose reduces the risk of power loss, smoke, and ECU errors resulting from discrepancies between the requested and actual boost pressure.

Construction and fitment for BMW E90/E91 M57N2

The hose has been designed specifically for the BMW intake system with the M57N2 engine, taking into account the factory routing in the engine bay. The appropriately selected diameter, shape, and mounting points allow for secure seating in the original brackets and connectors, which minimizes stress and the risk of abrasion during engine operation. As a result, the component works well with the factory intercooler, maintaining the flow parameters specified by the manufacturer.

Benefits of using an original charge air hose

Using a hose from the original BMW production line allows you to maintain the factory operating characteristics of the M57N2 engine. Proper fitment to the rest of the intake system reduces the risk of leaks, which can cause power loss, increased fuel consumption, and diagnostic errors. This is particularly important in turbocharged units, where stable boost pressure has a direct impact on the durability of components and driving comfort.

If you want to better understand how cooling and boost system components affect engine longevity, it is worth reading the article on engine overheating and the role of the cooling system and intercooler, which discusses the relationships between operating temperature and component condition in a practical way.

Part condition and service application

The offered hose is an aftermarket component, which allows for an economical repair of the intake system while maintaining the original BMW specification. This is a good solution in situations where the factory hose has suffered mechanical damage, delamination, or leaks have appeared at the connections. Replacing it with an OEM part from dismantling allows for the restoration of proper boost system operation without the need to use replacements with uncertain fitment.

Why choose original boost system components

In turbocharged engines, any leaking or poorly fitted intake component can lead to a drop in performance and accelerated wear of accessories. By choosing the original charge air hose designed for the BMW E90/E91 M57N2, you gain:

• factory fitment to the intake system and intercooler,
• stable airflow under pressure,
• reduced risk of boost-related ECU errors,
• a solution consistent with the design intended by the vehicle manufacturer.

If you are planning a wider range of service work and want to optimize costs while maintaining OEM parts, you can additionally check out the material on the advantages of using used original parts in service, which shows how to reasonably combine quality with savings.

Summary

BMW E90 E91 M57N2 Engine Charge Air Line Intercooler Pipe Hose is the right choice for drivers who expect compatibility with the factory design, stable boost system operating parameters, and reasonable repair costs. Its original origin and specific design for the engine unit allow for restoring proper engine performance and reducing the risk of problems associated with leaks in the air path.