BMW 3 E90 325i N52 Differential Diff 3,73 Ratio 7566179 7519941 RECONDITIONED

Listing details

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

BMW 3 E90 325i N52 Differential Diff 3,73 Ratio is an item from the Differentials category, designed for rear axle installation in BMW models with the N52 engine. This reconditioned differential ensures stable power transmission, proper operation of the differential system, and predictable vehicle behavior during acceleration and load changes.

Specifications and technical data

• SKU: 7566179-1
• Mark: BMW (Genuine OE)
• Condition: Remanufactured
• OEM Part Number: 7566179
• Substitutable numbers: 33107566179, 7566179, 33107519942, 7519942, 33107519941, 7519941, 33107566180, 7566180
• Location on the vehicle: Rear
• Category: Differentials

Purpose and function of the differential

The presented differential is designed to operate in the rear part of the drivetrain, where it is responsible for distributing torque between the wheels of the driven axle. Thanks to the appropriate final drive ratio, the driver receives predictable throttle response, and the vehicle maintains stability during both calm and more dynamic driving.

A properly selected rear axle reduces unwanted vibrations, minimizes noise in the drivetrain, and supports even tire wear. This is particularly important in BMW-class vehicles, where the drivetrain operates under higher loads than in typical front-wheel-drive designs.

Benefits of using a reconditioned differential

The differential in remanufactured condition undergoes a renewal process in which wear-and-tear components are verified and replaced according to established standards. This allows for a favorable compromise between purchase cost and the durability and operating culture of the component.

The main advantages of this solution include:

• maintaining operating characteristics similar to the original factory-installed component,
• reducing the risk of typical failures resulting from excessive wear of internal components,
• the ability to restore proper rear-wheel drive operation without the need to invest in a new axle.

Vehicle fitment and identification parameters

The differential is intended for BMW vehicles, particularly for configurations with the N52 engine and rear-wheel drive. The placement on the vehicle, specified as Rear, facilitates clear identification of the installation zone and service planning.

The product has an assigned SKU and OEM part number, as well as relevant interchangeable numbers, which allows for precise matching to a specific vehicle configuration and verification of compatibility with the existing drivetrain. Information about the condition enables an informed comparison with other solutions available on the secondary market.

Installation zone and service aspects

The placement of the differential in the rear of the vehicle requires attention to proper alignment with the driveshaft, half-shafts, and suspension components. Correct installation minimizes stress in the gear, reduces oil leaks, and affects the lifespan of the entire system.

During replacement, it is recommended to check the condition of mounts, bushings, and cooperating drivetrain components. A properly prepared mounting surface and correct tightening of bolted connections translate into stable differential operation and lower loads for other rear axle components.

Ratio selection and additional technical materials

The axle ratio has a direct impact on acceleration characteristics and engine RPM at highway speeds. When choosing a differential for a BMW with an N52 engine, it is worth considering driving style, transmission type, and the expected compromise between dynamics and acoustic comfort.

To better understand the relationships between gear ratios, drivetrain characteristics, and compatibility with a specific model, it is worth referring to our guide: Dismantled drive axles and differentials – how to choose ratios for your driving style. The article discusses definitions, gear ratio selection, application examples, and practical tips regarding used and reconditioned components.

If you are planning a comprehensive repair or upgrade of the drivetrain area in your BMW and need other items from the same group, such as rear axles, final drives, or other differentials, check out the available parts in the BMW Differentials category.