BMW E93 N57 Convertible Intake Manifold Charge Air Line Hose Diesel 7800344

Visual condition of the part

The product shows signs of use visible in the photos.

BMW E93 N57 Convertible Intake Manifold Charge Air Line Hose is an original turbocharging system component designed for BMW N57 diesel engines in the E93 model. It ensures a tight and stable connection between the intercooler and other intake components, which translates into correct boost pressure and predictable engine performance. This is the solution for users looking for a proven OEM component instead of universal replacements.

Specifications and technical data

• SKU: 7800344-1
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 7800344
• Substitutable numbers: 11617800344, 7800344, BG
• Fuel type: Diesel
• Category: Other Engine Parts

Purpose and role in the turbocharging system

The intercooler hose in a Diesel engine is responsible for transporting compressed air from the charge air cooler to the intake manifold or subsequent sections of the system. In N57 units in the BMW E93, stable air routing is crucial for:

• maintaining proper boost pressure across the entire rev range,
• reducing power drops resulting from leaks,
• preserving the correct operation of the turbocharger and engine control system,
• maintaining optimal air temperature after the intercooler.

A properly selected intercooler hose helps reduce the risk of the engine entering limp mode and supports the stable torque characteristics typical of N57 units.

Technical specifications and fitment for BMW E93 N57

The offered component was designed specifically for the engine bay geometry of the BMW E93 with an N57 unit, ensuring the correct routing, bend radii, and mounting points. In practice, this means:

• secure fitment with factory intercooler and intake ports,
• reduced stress at connection points,
• decreased risk of rubbing against adjacent components during engine operation,
• easier installation compared to universal hoses.

As a BMW group component, the hose maintains factory flow geometry, which makes it easier to maintain stock engine performance parameters without the need for additional modifications.

Condition and practical aspects

The product comes from the secondary market, which allows for an economical replacement of a damaged or leaking hose while maintaining the original design specification. In the case of a turbocharging system, this is particularly important where the following matters:

• tightness of connections under load,
• resistance to temperature and vibrations in the engine bay,
• compatibility with factory clamps and mounts.

Replacing a worn intercooler hose with an original component of this type is often the fastest way to eliminate problems with power loss, smoke, or boost pressure-related errors.

Benefits of using an original intercooler hose

By using a hose dedicated to the BMW E93 N57, you gain:

• factory fitment – no need for modifications, cutting, or adjusting diameters,
• consistency with other intake system components,
• easier diagnostics – air flow parameters correspond to the manufacturer's assumptions,
• the ability to maintain the stock performance characteristics of the Diesel engine, without unwanted deviations.

This solution is particularly beneficial for users who want to keep their car in a configuration close to factory standards while reducing costs by choosing parts from the secondary market.

Intake system expansion and additional materials

If you are planning a comprehensive repair or upgrade of the engine area in your BMW and need other components from the same group, such as additional intake hoses, pressure pipes, or mounting elements, check out the available parts in the Other BMW category.

For a comparison of the characteristics of powerful petrol and diesel units and the influence of the intake and turbocharging system on performance, the following guide material may be helpful: Audi RS vs other models – what is hidden under the hood and chassis?. The article allows for a better understanding of the relationships between engine construction, accessories, and real-world performance on the road.