BMW 3 Series F30 F31F34 LCI Rear Differential Diff 7624780 2,93 Ratio WARRANTY

Listing details

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

BMW 3 Series F30 F31F34 LCI Rear Differential Diff is a factory drivetrain component designed for installation on the rear axle in 3 Series models after the facelift. The original BMW design ensures consistency with factory suspension geometry, stable torque transfer, and predictable vehicle behavior during both daily and dynamic driving. This is the solution for users who want to maintain handling parameters consistent with the manufacturer's specifications when replacing a worn differential.

Specifications and technical data

• SKU: 7624780
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 7624780
• Substitutable numbers: 33107624780, 7624780, 33107624781, 7624781
• Location on the vehicle: Rear
• Category: Differentials

Purpose and function of the BMW rear differential

The rear differential in the BMW 3 Series is responsible for torque distribution between the wheels of the driven axle, compensating for rotational speed differences during cornering. A properly selected and functional component:

• reduces unwanted wheel slip during starting and acceleration,
• supports driving stability at higher speeds,
• ensures smooth, predictable vehicle behavior in corners,
• minimizes additional loads on half-shafts and suspension components.

The version dedicated to F30, F31, and F34 LCI facelift bodies allows for maintaining consistency with factory drivetrain settings, which is particularly important for cars used daily and in fleet applications.

Construction and fitment to the rear axle

The presented differential belongs to the Differentials category and is intended for installation on the vehicle's rear axle. The housing design, mounting points, and the method of connection to the driveshaft and half-shafts are consistent with the solutions used factory-wide in the BMW 3 Series F-generation. This makes it possible to:

• maintain the correct position of the drivetrain assembly relative to the suspension,
• ensure proper load transfer to the rear subframe and mounting elements,
• maintain correct cooperation with stock half-shafts and the driveshaft.

The placement on the vehicle in the rear zone promotes even weight distribution and is crucial for the balanced handling characteristic of BMW.

Benefits of using an original BMW differential

Using an original BMW rear differential in place of a worn or damaged component allows for restoring the vehicle's factory driving characteristics. The most important advantages of this solution include:

• Compatibility with the factory drivetrain – no need for modifications to mounts or half-shafts.
• Consistency with the operating characteristics of assistance systems (e.g., electronic stability control), which are designed for specific differential parameters.
• The ability to maintain the predictable balance between comfort and handling precision typical of BMW.

This solution is especially recommended when replacing a differential after a mechanical failure, excessive gear noise, or when rebuilding a car with the intention of maintaining stock drivetrain settings.

Characteristics of the used product

The offered rear differential is a used item, sourced from dismantling. Such components are frequently chosen by users looking for a reasonable compromise between repair costs and maintaining the original BMW design. In practice, this allows you to:

• reduce the cost of restoring drivetrain efficiency,
• maintain compliance with factory design solutions,
• retain the possibility of future service based on the manufacturer's documentation.

Before installation, it is recommended to perform a standard technical condition verification at a specialized service center and change the gear oil to ensure stable operation in the long term.

Gear ratio selection and additional technical materials

When replacing a differential in a BMW 3 Series, it is important to match the gear ratio to the engine version, transmission, and expected driving style. Proper selection affects acceleration dynamics, engine RPM at cruising speeds, and cooperation with the vehicle's electronic systems. If you want to deepen your knowledge about the configuration of drive axles and final drives, check out the article Used drive axles and differentials – how to choose gear ratios for your driving style, which discusses the practical aspects of gear ratio selection, compatibility, and the operation of aftermarket components.

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 differential housings, final drives, or complete rear drive assemblies, check the available parts in the BMW Differentials category.