BMW 3 Series E90 320si Rear Differential Diff 4,10 Ratio 7564878 RECONDITIONED

BMW 3 Series E90 320si Rear Differential Diff 4,10 Ratio is a specialized rear drivetrain assembly designed for the drive axle of this sporty 3 Series variant. The precisely selected gear ratio ensures dynamic drivetrain response, while the design, compliant with BMW factory standards, guarantees consistency with other components. This is a solution for users who expect stable torque transfer and predictable vehicle behavior in demanding conditions.

Specifications and technical data

• SKU: 7564878-1
• Mark: BMW (Genuine OE)
• OEM Part Number: 7564878
• Substitutable numbers: 33107564878 33107564879, 7564878 7564879
• Location on the vehicle: Rear
• Category: Additional Differential Parts

Purpose and function in the drivetrain

The described differential is a component of the rear drivetrain, responsible for distributing torque to the wheels of the driven axle. In the BMW 320si model, it is crucial for maintaining handling characteristics, especially at higher speeds and during dynamic load changes.

Its location at the rear of the vehicle allows for direct cooperation with the driveshaft and half-shafts, which translates into:

• consistent operation with the factory suspension and axle geometry,
• predictable traction during acceleration and engine braking,
• stable vehicle behavior in corners.

Compatibility and integration with the BMW 320si

The differential has been designed with the specifics of the powertrain and the characteristics of the 320si model in mind, which facilitates its integration with the existing drivetrain. The appropriate rear axle ratio supports the car's sporty profile, ensuring:

• efficient power transfer to the rear axle,
• adequate dynamics during acceleration,
• maintenance of proper drivetrain operating culture.

Thanks to its compliance with BMW factory solutions, the installation of the differential does not require interference with the body structure or modification of the basic mounting points, which helps maintain the original characteristics of the vehicle.

Benefits of using a dedicated differential

Using the correct rear axle in the BMW 320si allows for maintaining the consistency of the entire drivetrain. In practice, this means:

• better traction control during dynamic driving,
• stable vehicle behavior during sudden load changes,
• reduction of unwanted vibrations and stresses in the drivetrain.

For users who care about the technical side of the vehicle, it is important that using a differential compliant with factory specifications helps maintain consistent driving parameters and facilitates subsequent diagnostics and service.

Selection by OEM number and purchase support

When selecting a differential for the BMW 320si, it is crucial to verify compatibility by OEM number and interchangeable numbers, as well as to match it to the specific vehicle configuration. To avoid mistakes, it is worth using the VIN and full vehicle data.

If you want to check the compatibility of the part with your car step by step, use our practical guide: Guide: how to choose the right car part by VIN and OEM number. There you will find a procedure, a list of questions for the seller, and tips on how to compare technical parameters.

Drivetrain expansion and related parts

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 housings, mounts, or additional components working with the final drive, check the available parts in the category Other BMW differential parts.

For vehicle owners who are thinking long-term about the car's value, the material discussing the impact of original components on the subsequent resale of the vehicle may also be helpful: Original used parts vs. car resale price – how not to lose money?. This makes it easier to plan repairs in a way that is beneficial both technically and economically.