Engine Support BMW F20 F30 F31 N55 Supporting Mount Bracket Left N/S 6797831

Engine Support BMW F20 F30 F31 N55 Supporting Mount Bracket Left N/S is an original engine mounting component designed for installation on the left side of the engine bay. Thanks to its factory-engineered geometry, it ensures stable engine support and proper load transfer to the chassis, which translates into predictable vehicle handling. As part of the Engine mounts group, it enhances driving comfort by reducing unwanted vibrations and noise.

Specifications and technical data

• SKU: 6797831
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 6797831
• Substitutable numbers: 6797831, 22116797831, 6789093, 22116789093, KD
• Location on the vehicle: Left
• Category: Engine Mounts

Purpose and function of the component

The left-side engine mount bracket is responsible for a rigid yet controlled connection between the powertrain and the chassis structure. In BMW F-series vehicles, such as the F20, F30, or F31 with the N55 engine, a correctly selected and installed bracket:

• maintains the proper position of the powertrain relative to the chassis,
• works in conjunction with other components from the Engine mounts group,
• limits excessive engine movement during acceleration and braking,
• improves powertrain refinement and acoustic comfort.

Using a dedicated bracket for a specific generation and engine type of BMW allows for maintaining factory handling characteristics and the correct operation of related systems, such as the accessory drive or the exhaust system.

Benefits of using an original bracket

Selecting the correct engine mount is important not only for comfort but also for the durability of other components. Using a part that is structurally consistent with the factory BMW solution ensures:

• precise fitment to the mounting points on the chassis and engine,
• proper distribution of forces and moments acting on the powertrain,
• reduced risk of damage to adjacent components (e.g., hoses, covers, mounts),
• maintenance of the correct powertrain geometry, which promotes smooth gear shifting and vehicle stability.

The bracket operates in the immediate vicinity of the engine, which is why its construction must be resistant to dynamic loads, temperature changes, and vibrations. The original BMW solution has been designed with these conditions in mind, which translates into predictable performance over a long service life.

Placement on the vehicle and importance for the powertrain

The presented component is intended for installation on the left side of the vehicle, within the engine bay area. Proper placement is crucial for:

• maintaining the alignment of the powertrain relative to the chassis,
• correct interaction with other engine and transmission mounts,
• reducing the transmission of vibrations to the passenger cabin,
• system stability during sudden load changes.

When replacing worn or damaged components from the Engine mounts group, installing the correct left-side bracket allows for restoring the factory operating parameters of the powertrain, which is particularly important in higher-power vehicles, such as those with N55 engines.

Product characteristics and practical application

The offered engine mount bracket is a BMW part, which means it complies with the brand's factory design standards. The component has been designed to work with a specific engine and chassis configuration, thanks to which it:

• facilitates installation without the need for structural modifications,
• ensures compatibility with original bolts and mounting points,
• allows for maintaining the stiffness of the engine-to-chassis connection intended by the manufacturer.

The product is offered as used, which is a cost-effective solution while maintaining the original design specifications. This is a practical option for users who want to restore the correct operation of the powertrain without giving up parts originating from the same design group as the factory-installed element.

Technical support and additional materials

When planning work within the engine bay, it is also worth paying attention to the condition of the cooling system, which directly affects the operating conditions of the engine mount. You can read about the impact of high temperatures on the engine and ways to optimize repair costs in the guide Summer heat vs. cooling system: used radiators and fans as a guarantee of savings, where you will find practical tips on selecting used components.

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 brackets, mounts, or elements working with powertrain supports, check the available parts in the BMW Engine mounts category.