BMW G32 GT 630i G11 G12 730i Rear Differential Diff 3,08 Ratio 8619101 WARRANTY

Listing details

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

BMW G32 GT 630i G11 G12 730i Rear Differential Diff 3,08 Ratio is an original drivetrain component from the Differentials category, designed for installation on the rear axle in selected BMW 6 Series Gran Turismo and 7 Series models. The precisely selected gear ratio ensures stable vehicle handling, predictable acceleration characteristics, and comfortable drivetrain operation during both highway and city driving. This is the solution for users who expect consistency with factory specifications and the maintenance of proper handling characteristics.

Specifications and technical data

• SKU: 8619101
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 8619101
• Substitutable numbers: 8619101, 33108619101, 8619102, 33108619102
• Location on the vehicle: Rear
• Category: Differentials

Purpose and function of the BMW rear differential

The presented rear differential is designed as a drivetrain component mounted on the vehicle's rear axle. It is responsible for distributing torque to the rear wheels, working in conjunction with the driveshaft and half-shafts, which is crucial for traction, stability, and the overall refinement of the drivetrain in the BMW G32 GT 630i and G11/G12 730i sedans.

Selecting a differential with a specific 3.08 gear ratio allows for the preservation of factory acceleration characteristics and engine RPM at a given speed, which is particularly important for automatic transmissions and advanced traction control systems used in these models.

Benefits of using an original rear differential

Using an original differential in the BMW 6 Series GT and 7 Series provides a number of practical operational benefits:

• preservation of factory handling characteristics and drivetrain performance,
• proper integration with vehicle electronics (stability systems, traction control),
• gear ratio consistency with the factory transmission configuration,
• reduction of the risk of drivetrain malfunction resulting from the use of an incorrect gear ratio.

For users who value comfort and predictable vehicle behavior, using the correct rear differential is one of the key service decisions when performing drivetrain repairs.

Vehicle placement and installation aspects

The differential is designed for installation in the rear of the vehicle, within the drivetrain axis, between the half-shafts. This placement requires precise alignment with the subframe, suspension mounts, and the drivetrain geometry characteristic of the G32/G11/G12 platform.

When selecting a differential for a BMW, it is worth paying attention to:

• compatibility with the specific engine variant (630i, 730i),
• type of drivetrain (rear-wheel drive),
• gear ratio, which must match the factory configuration.

The product comes from the Differentials group, which means it was designed as an integral part of the drivetrain system, not as a universal replacement.

Condition and origin of the component

The offered rear differential is a secondary market component, which allows for economical drivetrain repair while maintaining the original BMW design. Such components are frequently chosen for post-accident repairs, replacements after mechanical failure, or when correcting the drivetrain configuration to factory parameters.

By maintaining the original rear differential design, the user receives a part that was specifically engineered to work with the suspension and drivetrain of the BMW G32 GT 630i and G11/G12 730i, which translates into predictable vehicle behavior in daily use.

Gear ratio selection and technical knowledge

When replacing a differential, it is crucial to match the gear ratio to your driving style and factory configuration. To better understand the relationship between the differential ratio, acceleration dynamics, and engine RPM, it is worth consulting specialized materials. Practical tips, configuration examples, and answers to frequently asked questions can be found in the article Dismantled drive axles and differentials – how to choose gear ratios for your driving style.

If you want to further organize your knowledge regarding the verification of component compatibility using OEM numbers and avoid mistakes when shopping online, the guide Risk-free online parts shopping – 5 proven ways to verify component compatibility using OEM numbers, which also discusses the selection of BMW differentials, will be helpful.

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