BMW 1 3 Series E46 E81 E87 E90 Rubber Mounting Gearbox 6771219

BMW E85 Z4 E87 Transmission Mount Bushing 1137817 is an original part from the Other category, designed for BMW E85 Z4 and E87 series models. This transmission support component ensures stable mounting of the drivetrain, reduces vibrations transferred to the body, and contributes to precise drivetrain operation.

Specifications and technical data

• SKU: 6771219
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 6771219
• Substitutable numbers: 22316771219, 6771219, 22316799331, 6799331, 23711137817, 1137817
• Category: Other Transmission & Drivetrain

Purpose and Function in the Drivetrain

The transmission mount bushing in BMW E85 Z4 and E87 models is responsible for supporting and damping the gearbox's operation relative to the car body. A correctly selected part:

• stabilizes the position of the gearbox relative to the engine and subframe,
• reduces vibrations and noise from the drivetrain,
• limits undesirable drivetrain movements during acceleration and engine braking,
• contributes to the smoothness of the drivetrain and driving comfort.

Thanks to the use of original BMW design, the correct mounting geometry and appropriate damping characteristics, tailored to the specific chassis of the E85 Z4 and E87, are maintained.

Benefits of Using an Original BMW Transmission Mount Bushing

Using the factory solution in the form of an original BMW transmission mount bushing allows for maintaining drivetrain performance parameters in line with the manufacturer's specifications. In practice, this means:

• precise fit to factory mounting points without the need for modifications,
• maintaining the correct stiffness and flexibility of the rubber-metal element,
• reduced risk of incorrect gearbox alignment relative to the driveshaft and half-shafts,
• minimizing clunks and vibrations during gear changes and when starting off.

This solution is particularly recommended when replacing a worn bushing, especially when symptoms such as excessive vibrations, jerking during gear changes, or metallic noises from the center tunnel area appear.

Item Condition and Service Application

The offered BMW transmission mount bushing is a used original part. This type of component is a good choice in situations where:

• you are looking for a factory component within a reasonable budget,
• you want to maintain the original drivetrain performance characteristics,
• you are repairing a car after mechanical damage or replacing a worn transmission support.

A used OEM part often integrates better with the vehicle's construction than aftermarket alternatives of uncertain specifications, which is particularly important in cars with precisely tuned chassis, such as the BMW E85 Z4 and E87.

Selection, Compatibility, and Replacement Numbers

The transmission mount bushing has a dedicated OEM part number and associated interchangeable numbers, which facilitates compatibility verification with specific engine and gearbox versions. Before purchasing, it is advisable to compare the markings with the currently installed part or consult the BMW catalog to confirm compatibility with your specific E85 Z4 or E87 model.

The presence of reference numbers also allows for easier searching for equivalents in service catalogs and parts selection systems, which speeds up the repair process and minimizes the risk of errors.

Other Products and Technical Knowledge

If you are also looking for other parts from the Other BMW category for your car, check out our offer, where you will find a wide selection of components such as Other BMW parts. This is a convenient way to select additional mounting elements, brackets, or structural accessories for your model.

To compare the characteristics of sports drivetrains with solutions used in standard car versions, it is worth reading the article on our blog: Audi RS vs. Other Models – What Lies Under the Hood and Chassis?. You will find practical information there about the differences in engine, brake, and chassis construction, which help to better understand the importance of correctly selecting components such as transmission mount bushings.

If you are interested in using recycled parts in the context of conscious servicing and car modification, also check out the post Eco-Tuning in Practice: How to Increase Performance While Reducing Carbon Footprint with Recycled Parts, where we discuss a practical approach to reusing automotive components.

Summary

BMW E85 Z4 E87 Transmission Mount Bushing 1137817 is an original mounting component designed for stable transmission support and vibration reduction in the drivetrain. Choosing a used OEM component allows for maintaining the original driving characteristics of the BMW, ensures correct fitment to the vehicle's construction, and represents a sensible service solution for E85 Z4 and E87 models.