BMW F10 F11 Rear Differential Diff 3,38 Ratio 7578149 WARRANTY

Listing details

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

BMW F10 F11 Rear Differential Diff 3,38 Ratio is an original drivetrain component from the Differentials group, designed for installation on the rear axle. It ensures precise torque transmission and stable drivetrain operation, which directly impacts the handling and driving refinement of your BMW.

Specifications and technical data

• SKU: 7578150
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 7578150
• Substitutable numbers: 7578150, 33107578150, 7578149, 33107578149
• Location on the vehicle: Rear
• Category: Differentials

Purpose and function of the differential

The presented differential is designed to operate in the rear of the vehicle, where it is responsible for distributing power to the wheels of the driven axle. A properly selected gear ratio translates into predictable vehicle behavior, smooth acceleration, and stability at higher speeds. For BMW F10 and F11 series models, a properly functioning differential is crucial for maintaining the brand's characteristic dynamics and driving comfort.

Technical characteristics and fitment

The differential is configured with a 3.38 gear ratio, which provides a balance between flexibility at low speeds and smooth operation during highway driving. This configuration is particularly beneficial for users who expect a balanced vehicle character – both in daily use and during more dynamic driving. The component belongs to the Differentials group, making it easy to include in the planning of comprehensive drivetrain maintenance.

Condition, origin, and benefits of use

The differential comes from dismantling and is offered as a used part, which allows for a significant reduction in repair costs compared to purchasing a new component. At the same time, you retain the advantages of the original BMW design, such as proper fitment, compatibility with factory mounts, and predictable performance parameters. Replacing a worn differential with a functional unit of this type helps reduce noise from the rear of the vehicle, improve drivetrain smoothness, and minimize the risk of further damage to the drivetrain system.

Application in service practice

When installing the BMW F10 F11 Rear Differential Diff 3,38 Ratio, it is worth paying attention to the overall condition of the drivetrain – half-shafts, bearings, mounts, and mating components. A properly performed replacement, following service procedures and using the correct gear oil, allows for restoring stable rear axle operation and reducing unwanted vibrations. This type of differential is particularly recommended for repairs where maintaining factory driving parameters and compatibility with vehicle electronics is a priority.

Gear ratio selection and technical knowledge

If you want to better understand how the differential ratio affects acceleration characteristics, engine RPM, and fuel consumption, it is worth consulting specialized materials. A practical discussion of the topic can be found in the article Dismantled drive axles and differentials – how to choose gear ratios for your driving style, which describes the principles of selecting a drive axle and differential for specific applications.

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 drive axles, other differentials, or related transmission components, check out the available parts in the BMW Differentials category.