BMW 1 3 Series F20 F21 F30 LCI M140i 340i Mount Bracket Holder Engine 8631090

Description

The BMW F20 F21 F30 LCI M140i 340i Engine Mount Bracket is an original part from the Engine Mounts group, designed for facelifted (LCI) BMW 1 and 3 Series models with M140i and 340i engines. This component provides stable, controlled support for the powertrain, resulting in precise handling and reduced unwanted vibrations in the chassis.

Specifications and technical data

• SKU: 8631090
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 8631090
• Substitutable numbers: 11518631090, 8631090, EM
• Category: Engine Mounts

Purpose and Function of the Engine Mount Bracket

The engine mount bracket in the BMW F20, F21, and F30 LCI is responsible for transferring loads from the engine to the chassis while damping vibrations and shocks. In high-performance vehicles like the M140i and 340i, a correctly selected bracket is particularly crucial for maintaining powertrain stability during dynamic acceleration, engine braking, and gear changes.

Thanks to its factory-engineered geometry and precise fit for specific BMW generations, this part ensures the engine maintains its correct position relative to the chassis, which is important for both driving comfort and the longevity of other components in the engine bay.

Benefits of Using an Original BMW Bracket

Using an original engine mount bracket from the Engine Mounts group ensures:

• maintenance of the powertrain’s original operating characteristics,
• proper transfer of forces and torque to the chassis structure,
• reduction of excessive vibrations felt in the cabin,
• better integration with the stock suspension and drivetrain.

For BMW M140i and 340i owners, this is particularly important during intensive driving, where the stability of the engine mount affects the vehicle’s responsiveness and operational safety.

Product Characteristics and Service Application

The presented bracket is an original BMW part, meaning it offers full compatibility with factory mounting points on the chassis and engine. This simplifies installation in a service environment, reduces replacement time, and minimizes the risk of improper fitment.

A part from this group is particularly recommended in situations where:

• noticeable engine vibrations occur at idle or when starting off,
• clunking noises are heard from the engine bay during sudden acceleration or deceleration,
• the original powertrain alignment needs to be restored after a collision or bodywork repairs.

A used, functional engine mount bracket offers a sensible compromise between repair cost and maintaining the vehicle’s original specifications.

Part Selection by Numbers and Compatibility

This bracket has a dedicated OEM part number and associated interchangeable numbers, facilitating unambiguous identification in BMW catalogs and service systems. When selecting a part, it is advisable to use the manufacturer’s designations and vehicle details (model, generation, engine variant) to ensure full compatibility with your specific vehicle.

If you have doubts when planning extensive work on the powertrain, a practical guide on purchasing used engines might be helpful – you can find it in the article How to Buy a Used Car Engine and Avoid Pitfalls – A Step-by-Step Guide, which discusses, among other things, assessing the condition of components working with the engine.

Expanding Work in the BMW Engine Mount Area

If you are planning a comprehensive repair or upgrade of the engine area in your BMW and need other parts from the same group, such as additional brackets, supports, or other vibration-damping elements, check the available parts in the BMW Engine Mounts category.

When planning broader modifications within the powertrain, it is also worth paying attention to selecting other components that comply with OEM designations and manufacturer references, which helps maintain the consistency of the entire system and reduces the risk of improper engine operation in the long run.