BMW F80 M3 F82 F83 M4 F87 M2 Rear Differential Diff 3,46 Ratio 8090473 WARRANTY

Listing details

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

BMW F80 M3 F82 F83 M4 F87 M2 Rear Differential Diff 3,46 Ratio is an original BMW drivetrain component designed for rear axle installation. The precisely selected gear ratio ensures predictable vehicle handling, stable traction, and consistency with the characteristics of the sporty M-series models, making this differential a valuable choice for drivetrain repairs or upgrades.

Specifications and technical data

• SKU: 8090473
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 8090473
• Substitutable numbers: 33108090473, 8090473
• Location on the vehicle: Rear
• Category: Additional Differential Parts

Purpose and function in the drivetrain

The presented rear differential is responsible for torque distribution to the rear wheels, maintaining the correct gear ratio and smooth operation. Mounted in the rear section of the vehicle, it works in conjunction with the driveshaft and half-shafts, influencing:

• the car's response to acceleration and downshifting,
• stability at higher speeds,
• traction control during dynamic driving.

Thanks to the properly selected gear ratio, the differential supports the M-series' characteristic combination of performance and daily usability.

Benefits of using an original BMW differential

Using an original differential in F80 M3 and F82 M4 models allows for maintaining factory handling characteristics. This means predictable vehicle behavior in corners, proper cooperation with the vehicle's electronics, and consistency with factory drivetrain settings.

Key advantages include:

• maintaining compatibility with the rear suspension and drivetrain design,
• reducing the risk of malfunctions in driver assistance systems,
• the possibility of direct replacement for a worn component without the need for structural modifications.

Choosing an original component from the Other differential parts group is a solution that facilitates service and helps maintain the integrity of the entire drivetrain.

Condition, fitment, and service application

The offered differential is a used component, which in service practice often represents a reasonable compromise between cost and maintaining original specifications. This type of subassembly is particularly useful for:

• repairs after mechanical damage within the rear drivetrain,
• restoring vehicle performance after a differential failure,
• comprehensive drivetrain rebuilding in cars used both on the road and occasionally on the track.

Its location in the rear of the vehicle facilitates service access, and the design intended for specific M-series models promotes efficient installation by an experienced workshop.

Expanding the scope of repairs and selecting related components

When replacing the rear differential, it is worth paying attention to the condition of cooperating components, such as half-shafts, mounts, or vibration damping elements. A comprehensive approach to repair helps reduce the risk of secondary failures and ensures consistent operation of the entire 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 housings, mounts, or additional transmission subassemblies, check the available parts in the Other BMW differential parts category.

Technical support and cost optimization

Choosing used drivetrain components is often a conscious decision that allows for optimizing service costs while maintaining original quality. In the context of premium vehicles, such as BMW or Mercedes, selecting the right dismantled components is significant for durability and driving comfort. You can find more about the approach to using used components in premium segment cars in the article Used parts for Mercedes - original parts from dismantling.

By choosing an original BMW rear differential, you gain consistency with the factory design, predictable car behavior, and a solid foundation for further service work or drivetrain modifications in your F80 M3 or F82 M4.