BMW 7 Series E65 M57N 730d Diesel Manifold Charge Air Line Hose 7789830

The BMW 7 Series E65 730d M57N Charge Air Hose is an original equipment component of the diesel engine intake system, designed to work in conjunction with the turbocharger and intake manifold. This used part from the Turbochargers & Parts category allows you to restore proper charge air flow in the BMW 7 Series E65 730d engine.

Specifications and technical data

• SKU: 7789830
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 7797708
• Substitutable numbers: 11617797708, 7797708, 11617789830, 7789830, KZ
• Fuel type: Diesel
• Category: Turbos & Parts

Application and function in the supercharging system

This pressure line is the connecting element of the charge air circuit in the M57N diesel engine, ensuring a tight flow of compressed air between the turbocharger and the intake manifold. A properly selected and functional line:

• stabilizes the operation of the turbocharger in the full load range,
• limits boost pressure drops,
• supports even filling of cylinders with air,
• indirectly affects the work culture and performance of the diesel engine.

In conjunction with other components of the intake system, the hose helps maintain the proper operating parameters of the engine, which is particularly important in the powerful engines of the BMW 7 Series.

Construction, fit and compatibility

The BMW 7 E65 730d M57N charge air hose is factory-designed for the specific geometry of the engine compartment, maintaining the correct routing, bend radii, and mounting points. Original design ensures:

• precise fit to the turbocharger and intake manifold connections,
• compatibility with factory clamps and handles,
• adequate resistance to temperature and pressure typical of a supercharged diesel engine.

As a component of the turbocharger and components group, the hose is designed to operate in an environment of high thermal and pressure loads, characteristic of modern BMW diesel engines.

Condition, verification and the benefits of choosing a used part

The cable offered is in used condition, meaning it has been disassembled but has been verified for continued serviceability. Selecting such a part is:

• the possibility of economical repair of the supercharging system while maintaining the original specifications,
• maintaining the factory fit typical of the BMW brand,
• reducing the risk of assembly problems typical of substitutes with imprecise dimensions.

For diesel engines, the tightness and stability of the intake manifolds are particularly important – a used, original component often meets the design requirements better than a random replacement of uncertain origin.

Cable selection by OEM number and technical support

To ensure that the cable will be fully compatible with the specific configuration of the BMW 7 Series E65 730d, it's worth verifying compatibility by the OEM number and available interchangeable numbers in the specifications tab. If you have any doubts, a practical guide on selecting parts by catalog number can be helpful – you can find it in the article "Selecting the right car part by VIN and OEM number ," which describes the step-by-step compatibility check process and lists questions for the seller.

Other BMW turbocharger hoses and components

If you are also looking for other components from the turbochargers and parts category for BMW, check out our dedicated offer – browse the available turbochargers and parts for BMW to complete the entire intake system in line with the requirements of your engine.

For users planning a more extensive drive system service, including drive transmission components, the expert material Clutch and dual-mass flywheel – diagnostics and selection of parts for the drive system may be helpful, as it facilitates the planning of comprehensive service work in diesel cars.

Summary

The BMW 7 Series E65 730d M57N charge air hose is an original, used intake system component designed for the diesel engine. It ensures proper routing of compressed air from the turbocharger to the intake manifold, supports stable engine operation, and allows for a technically correct, economical repair of the BMW 7 Series' charging system.