BMW F10 F11 F20 X3 F25 Front Differential Diff 3,08 Ratio 8618381 RECONDITIONED

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 F20 X3 F25 Front Differential Diff 3,08 Ratio RECONDITIONED is a professionally refurbished front differential designed for selected BMW models with xDrive all-wheel drive. Thanks to precise reconditioning, it provides a reliable service solution, ensuring stable torque transfer and proper operation of the drivetrain. It is a cost-effective alternative to new components, allowing you to maintain the correct gear ratio and driving characteristics.

Specifications and technical data

• SKU: 7591998-1
• Mark: BMW (Genuine OE)
• Condition: Remanufactured
• OEM Part Number: 7591998
• Substitutable numbers: 31507591998, 7591998, 31507591997, 7591997, 31507648880, 7648880, 31507648881, 7648881, 8618381
• Location on the vehicle: Front
• Category: Differentials

Purpose and function in the drivetrain

The offered component belongs to the Differentials group and is designed for installation on the front of the vehicle. Its task is to distribute torque to the front axle wheels while maintaining the appropriate gear ratio, which affects traction, handling stability, and the overall performance of the drivetrain.

A differential with a 3,08 ratio is the right choice where maintaining factory acceleration characteristics and engine RPM relative to vehicle speed is required. This is important both for driving comfort and for proper interaction with the drivetrain control electronics and safety systems.

Reconditioning and benefits of use

The presented differential is a reconditioned component, meaning it has undergone a process of restoring full operational efficiency. In practice, the user receives a component with a verified technical condition, prepared for further operation in demanding road conditions.

Key advantages of a reconditioned differential include:

• maintaining the correct gear ratio in accordance with the vehicle's factory configuration,
• reducing the risk of noise, backlash, and vibrations in the drivetrain,
• more predictable vehicle behavior during acceleration and engine braking,
• an economical alternative to a new component while maintaining high functionality.

Compatibility and part identification

The differential is an original BMW component, marked with an OEM part number and having interchangeable numbers, which facilitates matching to a specific vehicle configuration. This allows for precise selection of the component for a given model and drivetrain version, without the need for structural modifications.

For unambiguous identification in our system, the product has a dedicated SKU, which allows you to quickly verify the compatibility of the offer with the differential you are looking for and avoid ordering errors.

Application in BMW models

The offered differential is intended for selected versions of the BMW 5 Series F10/F11, 1 Series F20, and BMW X3 F25, which use front-wheel drive as part of the xDrive system. Using the correct differential on the front axle has a direct impact on:

• proper cooperation with the rear axle and transmission,
• handling stability at higher speeds,
• even wear of tires and suspension components,
• correct operation of traction control and stability systems.

For workshops and individual users, this means the possibility of performing repairs in a way that is close to the factory standard, while maintaining the consistency of the entire drivetrain parameters.

Technical support and gear ratio selection

Choosing the right differential, especially in terms of gear ratio and compatibility with a specific engine version and transmission, is crucial for durability and driving comfort. To better understand the relationship between the axle ratio and the car's characteristics, it is worth reading our guide: Dismantled drive axles and differentials – how to choose ratios for your driving style.

Additionally, if you are interested in a practical approach to assessing the condition of used and reconditioned drivetrain components, the following article will be helpful: Second-hand differential – what you need to know about used differentials, sensors, and drivetrains, where you will find tips on diagnostics and operation.

Expanding repairs within the BMW drivetrain

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