BMW E87 130i N52 E84 20dx N47 Rear Differential Diff 3,46 Ratio RECONDITIONED

BMW E87 130i N52 E84 20dx N47 Rear Differential Diff 3,46 Ratio RECONDITIONED is a precisely refurbished drivetrain component designed for selected BMW 1 Series and X1 models. Thanks to professional reconditioning and adherence to factory specifications, this rear differential ensures stable torque transfer, proper rear axle operation, and predictable vehicle behavior during acceleration and engine braking.

Specifications and technical data

• SKU: 7566182-1
• Mark: BMW (Genuine OE)
• OEM Part Number: 7566182
• Substitutable numbers: 33107566182, 7566182, 33107557150, 7557150
• Location on the vehicle: Rear
• Category: Differentials

Application and 3.46 ratio

The presented rear differential is intended for installation in the vehicle's rear axle, in BMW cars equipped with petrol and diesel engines for which a 3.46 final drive ratio is specified. This final drive configuration provides a balance between acceleration dynamics and driving comfort at higher speeds, which is particularly important for cars used in both urban and highway environments.

Choosing the correct differential ratio has a direct impact on:

• the car's throttle response and flexibility in lower gears,
• engine RPM at cruising speeds,
• drivetrain refinement and noise levels in the cabin.

Reconditioning and preparation for installation

The differential has been professionally reconditioned, meaning it has undergone a renewal process while maintaining factory parameters. The reconditioning includes verification of the housing, gear components, and bearings, as well as checking clearances and gear mesh accuracy. As a result, the component is ready for installation as a complete rear axle unit, without the need for additional machining or mechanical adaptation.

The vehicle placement defined as rear facilitates part selection in the catalog and communication with a mechanic – the differential is mounted in the rear part of the chassis, between the half-shafts, as a key element of power transmission to the rear wheels.

Benefits of using a reconditioned differential

Using a reconditioned differential with the correct ratio allows for restoring proper drivetrain operation without the need to invest in a new axle. In practice, this means:

• restoring the correct acceleration and engine braking characteristics,
• reducing unwanted noise and vibrations coming from the rear axle,
• maintaining compliance with BMW's factory specifications regarding the final drive ratio.

For users looking for a solution with a favorable price-to-quality ratio, the BMW E87 130i N52 E84 20dx N47 Rear Differential Diff 3,46 Ratio RECONDITIONED represents a technically sound alternative to a new part, while maintaining high gear precision.

Vehicle fitment and technical support

To correctly match the differential to a specific BMW unit, it is worth verifying the factory markings and the vehicle's drivetrain configuration. Both OEM part numbers and interchangeable numbers are helpful here, allowing for unambiguous identification of the component in service catalogs and parts selection systems.

If you want to better understand how a 3.46 ratio will affect your car's driving characteristics, how to interpret differential markings, and what the difference is between a used and a reconditioned differential, check out the guide: Dismantled drive axles and differentials – how to choose ratios for your driving style. This is a practical source of knowledge that will facilitate an informed choice of component.

Expanding 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 final drive components, check out the available parts in the BMW Differentials category.