BMW G11 G12 G30 G31 G32 Rear Differential Diff 2,56 Ratio 8619107 WARRANTY

Listing details

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

BMW G11 G12 G30 G31 G32 Rear Differential Diff 2,56 Ratio is an original drivetrain component designed for installation on the rear axle of selected BMW 5 and 7 Series models. This component from the Differentials category ensures proper torque distribution between the wheels, which translates into stable handling and predictable vehicle behavior. Thanks to its factory design, it is a solution technically matched to the suspension and drivetrain architecture of these models.

Specifications and technical data

• SKU: 8619107
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 8619107
• Substitutable numbers: 8619107, 33108619107
• Location on the vehicle: Rear
• Category: Differentials

Purpose and function in the drivetrain

The differential mounted on the rear axle is responsible for compensating for the difference in wheel rotational speed when cornering and for effectively transferring torque from the driveshaft to the wheels. For BMW G11, G12, G30, G31, and G32 models, a properly selected rear differential is crucial for:

• maintaining driving stability at higher speeds,
• proper operation of traction control and stability systems,
• even loading of rear suspension components,
• reducing unwanted vibrations and noise in the cabin.

The appropriate gear ratio characteristics in this differential allow for maintaining the factory driving feel, consistent with BMW's design assumptions for this generation of the 5 and 7 Series.

Compatibility with the BMW G11 / G12 / G30 / G31 / G32 platform

The rear differential has been designed with the G-platform chassis architecture in mind, which means it is matched to the suspension geometry, mounting points, and drivetrain system used in these models. As a result:

• factory mounting points and the method of attachment to the subframe are preserved,
• connection to the driveshaft and half-shafts is carried out in the standard way intended by the manufacturer,
• there is no need to interfere with the body structure or use adaptive modifications.

Such a fit facilitates quick installation in a specialized service center and reduces the risk of problems with geometry or drivetrain operation after replacement.

Rear axle installation characteristics

The placement of the differential at the rear of the vehicle requires high precision during installation, as this component works directly with the suspension, half-shafts, and drivetrain control system. In practice, this means the necessity of:

• correct alignment of the differential relative to the vehicle's axis,
• checking clearances in the connections with the half-shafts and driveshaft,
• applying the appropriate tightening torques for mounting bolts, in accordance with BMW service documentation.

A professionally installed rear differential allows for maintaining the proper operating culture of the drivetrain and reducing the wear of cooperating components.

Benefits of using an original BMW differential

Using an original rear differential in a G-Series BMW brings a number of practical operational benefits. The most important include:

• Preservation of factory handling characteristics – the vehicle reacts to acceleration and deceleration in a predictable manner, consistent with the manufacturer's specifications.
• Compatibility with electronic systems – stability control systems, traction control, and driving assistants operate based on the parameters intended for this type of differential.
• Consistency with other drivetrain components – no need for controller software modifications or mechanical adaptations.

For users who value precise handling and the driving comfort typical of BMW, using the correct rear differential is an essential element of keeping the vehicle in good technical condition.

Selecting a differential for driving style and car configuration

When replacing a rear differential in a BMW, it is worth paying attention to the gear ratio's compatibility with the factory specification of the given unit and the expected character of the drivetrain's operation. Proper selection affects acceleration dynamics, engine RPM at highway speeds, and overall driving comfort. If you want to better understand how differential parameters translate into car behavior, check out the article Dismantled drive axles and differentials – how to choose gear ratios for your driving style, where you will find practical tips and configuration examples.

If you are planning a comprehensive repair or upgrade of the drivetrain area in your BMW and need other elements from the same group, such as additional axles, differentials with different ratios, or compatible rear-wheel drive components, check out the available parts in the BMW Differentials category.