BMW 3 Series E90 E91 E92 E93 LCI N57 Gearbox Support Mount Exhaust System

The BMW 3 Series E90/E91/E92/E93 LCI N57 Exhaust Gearbox Bracket is an original structural component designed for facelifted 3 Series models with the N57 engine. This used OEM part provides stable gearbox support and proper guidance for the exhaust section, contributing to correct drivetrain operation and vibration reduction.

Specifications and technical data

• SKU: 7807714
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 7807714
• Substitutable numbers: 18207807714, 7807714, PK
• Category: Other Transmission & Drivetrain

Component Purpose and Function

The exhaust gearbox bracket for the BMW 3 Series E90, E91, E92, and E93 LCI generation with the N57 unit is responsible for:

• Mechanical support of the gearbox at the exhaust system connection point,
• Maintaining correct mounting geometry,
• Reducing unwanted stress in the drivetrain,
• Minimizing the transfer of vibrations and noise to the chassis.

Thanks to this component, the drivetrain maintains proper rigidity, and the exhaust system operates in its intended position, promoting stable and predictable drivetrain performance.

Compatibility with BMW 3 Series E90/E91/E92/E93 LCI N57

The offered bracket is specifically designed for facelifted BMW 3 Series models with the N57 engine, covering sedan (E90), wagon (E91), coupe (E92), and convertible (E93) body styles. Using an original BMW solution allows for maintaining:

• Factory mounting points for the gearbox and exhaust system,
• Compliance with factory chassis geometry,
• Consistency with other mounting elements in this drivetrain configuration.

This is particularly important for collision repairs, gearbox replacements, or exhaust section upgrades, where the precise fit of an OEM part minimizes the risk of future play, knocking, or leaks.

Characteristics of a Used OEM Part

As a used part, this bracket comes from a dismantled original BMW and retains its factory construction and mounting points. In practice, this means:

• Preservation of original structural rigidity,
• No need for modifications during installation,
• Compatibility with factory bolts and mounting bushings.

Choosing an original, used bracket is a beneficial solution for users who want to maintain their car in a configuration consistent with the manufacturer's design, avoiding potential fitting issues with cheaper aftermarket alternatives.

Assistance with Completing Mounting Components

If you are planning a comprehensive repair or upgrade of the underbody area in your BMW and require other components from the same group, such as additional brackets, clamps, or mounting holders, check the available parts in the Other BMW category.

For larger service projects – especially when combining work on the gearbox, exhaust system, and suspension – it is worth exploring practical tips on selecting original used components and avoiding problematic aftermarket replacements. The article Comprehensive Sourcing: From Engine to the Smallest Clip – How to Assemble Used Car Parts in One Place? can be helpful.

Summary of Bracket Application

The BMW 3 Series E90 E91 E92 E93 LCI N57 Exhaust Gearbox Bracket is a functional structural element that stabilizes the position of the gearbox and exhaust section in 3 Series cars with the N57 engine. Using an original BMW component allows for maintaining correct chassis geometry, reducing vibrations, and ensuring predictable drivetrain behavior in daily use.

For users interested in comparing technical solutions in sport versions of other brands – including differences in drivetrain, brake, and chassis construction – the article Audi RS vs. Other Models – What Lies Under the Hood and Chassis? can be an interesting addition to your knowledge, showing how manufacturers design key drivetrain components in high-performance vehicles.