BMW E87 E90 E91 116i 118i 318i 320i Differential Diff 3,91 Ratio RECONDITIONED

Listing details

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

BMW E87 E90 E91 116i 118i 318i 320i Differential Diff 3,91 Ratio RECONDITIONED is a professionally refurbished rear drive axle from the Differentials category, designed for installation in the vehicle's rear axle. The reconditioning process restores the correct operating parameters of the gear unit, ensuring stable torque transmission and proper interaction with the BMW drivetrain. This is a solution for users who expect a technically verified component while maintaining a favorable cost-to-quality ratio.

Specifications and technical data

• SKU: 7524325-1
• Mark: BMW (Genuine OE)
• Condition: Remanufactured
• OEM Part Number: 7524325
• Substitutable numbers: 33107524325, 7524325, 33107524326, 7524326
• Location on the vehicle: Rear
• Part type: Differential & Housing Assembly
• Category: Differentials

Purpose and function of the differential

The offered rear differential is a component of the drivetrain system, responsible for distributing torque to the rear wheels and providing the correct drive ratio. Using the appropriate final drive ratio affects acceleration characteristics, engine RPM at a given speed, and the overall refinement of the drivetrain.

Its location in the rear of the vehicle allows for direct interaction with the driveshaft and half-shafts, which is crucial for traction stability and predictable vehicle behavior during acceleration and engine braking.

Reconditioning and preparation for installation

The differential has undergone a reconditioning process aimed at restoring correct operating clearances, proper gear operation, and housing tightness. Such a reconditioned component serves as an attractive alternative to new parts, allowing for reduced service costs while maintaining the required performance parameters.

Preparation for installation includes checking key mounting points and mating surfaces, which facilitates installation in the vehicle and reduces workshop labor time. As a result, the differential can be efficiently integrated into the existing drivetrain without the need for additional structural modifications.

Benefits of using a reconditioned differential

Using a reconditioned rear axle in a BMW allows for:

• restoring proper drivetrain operation without excessive play or noise,
• maintaining consistent vehicle handling characteristics thanks to the correct gear ratio,
• reducing repair costs compared to purchasing a brand-new component,
• maintaining compatibility with the factory drive configuration.

For workshops and individual users, this means the ability to perform repairs in a technically sound manner while maintaining a reasonable service budget.

Vehicle fitment and technical compatibility

To select the correct differential for a specific BMW version, one must pay attention to gear ratio compatibility, drive type, and the structural parameters of the rear axle. In practice, this requires verifying vehicle data and comparing it with the technical information of the differential, which minimizes the risk of incorrect part selection.

If you have any doubts regarding gear ratios and matching them to your driving style, it is worth utilizing expert knowledge. A helpful article describing the selection of drive axles and final drives can be found here: Dismantled drive axles and differentials – how to choose gear ratios for your driving style.

Expanding the BMW drivetrain

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 additional axles, final drives, or other complete differentials, check the available parts in the BMW Differentials category.

For users interested in broader vehicle modernization, including retrofitting with parts from higher trim levels, a guide on retrofitting may also be useful, available at this link: Retrofitting in VAG and BMW group cars – how to upgrade your car affordably.

Summary

BMW E87 E90 E91 116i 118i 318i 320i Differential Diff 3,91 Ratio RECONDITIONED is a technically prepared rear drivetrain component that restores proper gear operation in BMW vehicles. Reconditioning ensures the functionality required for daily use, and the correct gear ratio supports dynamic yet predictable vehicle behavior. This is a solution for users seeking a verified, professionally prepared rear axle differential.