BMW F01 F06 F07 F10 F11 F12 Rear Differential Diff 2,81 Ratio 7630828 WARRANTY

Listing details

The differential is sold with a 90-day warranty! It was tested before removal and is in full working order.

BMW F01 F06 F07 F10 F11 F12 Rear Differential Diff 2,81 Ratio is an original drivetrain component from the Differentials category, designed for rear-axle installation in selected BMW F-series models. This is a solution for users who expect stable power transmission, predictable vehicle behavior, and consistency with factory handling characteristics. By maintaining the correct final drive ratio, it is possible to preserve driving comfort and ensure proper interaction with the vehicle's electronics.

Specifications and technical data

• SKU: 7630828
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 7630828
• Substitutable numbers: 7630828, 33107630828, 7630829, 33107630829
• Location on the vehicle: Rear
• Category: Differentials

Purpose and function of the rear differential

The presented rear differential is dedicated to the drive axle in BMW F-series models, such as the F01, F10, F11, or F12, where it is responsible for even torque distribution between the wheels and proper cooperation with traction control systems. The applied 2.81 ratio allows for maintaining factory dynamics, drivetrain refinement, and predictable vehicle reactions during acceleration and engine braking.

Its location at the rear of the vehicle body helps maintain the original geometry of the drivetrain and minimizes the risk of improper fitment with the half-shafts and driveshaft. This is particularly important when replacing a differential in higher-power vehicles, where the stability and durability of components have a direct impact on driving safety.

Benefits of using an original BMW differential

Choosing an original BMW rear differential with the factory-specified ratio offers a number of practical benefits:

• preservation of the manufacturer-designed acceleration characteristics and engine RPM during highway driving,
• proper cooperation with automatic or manual transmissions and electronic stability control systems,
• consistency with factory ECU settings, without the need for additional gear ratio programming,
• reduction of the risk of unwanted vibrations and noise in the drivetrain.

For users who are upgrading or repairing their drivetrain, using a compatible rear differential is crucial to avoid issues with ECU errors, uneven tire wear, or excessive transmission load.

Installation and operational characteristics

The differential is designed as a rear-axle mounted component, which facilitates its integration with the existing suspension and drivetrain system in BMW F-series vehicles. The construction provided by the manufacturer allows for relatively efficient replacement in a workshop environment, provided that appropriate installation and adjustment procedures are followed.

As a pre-owned aftermarket component, the differential represents a reasonable compromise between cost and functionality, especially for vehicles used intensively or with higher mileage. With proper installation and the use of the correct gear oil, it can ensure stable drivetrain operation for a long period of use.

Vehicle fitment and technical compliance

To correctly match this differential to a specific BMW unit, it is worth paying attention to compatibility with the body version, drive type, and the transmission used. The product has an OEM part number and interchangeable numbers, which facilitates compatibility verification in the manufacturer's catalogs or at a professional service center. This allows for precise confirmation that the selected differential will work with the existing drivetrain without the need for mechanical modifications.

If you are planning a comprehensive repair or upgrade of the drivetrain in your BMW and need other components from the same group, such as differential housings, driveshafts, or additional gears, check out the available parts in the BMW Differentials category.

Technical support and gear ratio selection

Choosing the right final drive ratio has a direct impact on driving characteristics – from acceleration dynamics to engine RPM at cruising speeds. If you want to better understand how the 2.81 ratio fits your driving style and vehicle configuration, it is worth consulting specialized materials. Practical tips, configuration examples, and a discussion of the differences between individual ratios can be found in the article Dismantled drive axles and differentials – how to choose ratios for your driving style, which explains key technical issues in an accessible way.

Summary

BMW F01 F06 F07 F10 F11 F12 Rear Differential Diff 2,81 Ratio is a functional choice for drivers who want to restore the efficiency of their drivetrain or maintain the factory handling characteristics of their BMW. A properly selected and installed rear differential allows for maintaining vehicle stability, correct interaction with electronics, and driving comfort at the level intended by the manufacturer.