BMW 3 Series E90 E92 E93 M3 Rear Right O/S Wheel Brake Disc 2283804

BMW 3 Series E90 E92 E93 M3 Rear Right O/S Wheel Brake Disc is an original brake system component designed for installation on the offside (right) rear axle. Thanks to its factory-fitment for the M3 version, it ensures consistency with the original braking characteristics and proper compatibility with other system components.

Specifications and technical data

• SKU: 2283804
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 2283804
• Substitutable numbers: 34212283804, 2283804, 34212283388, 2283388
• Location on the vehicle: Rear, Right
• Category: Brake Disc Rotors

Purpose and compatibility for BMW 3 Series M3

The presented disc belongs to the Brake discs category and is dedicated to BMW 3 Series E90, E92, and E93 M3 models, for the rear axle, right side. This means that its geometry, working diameter, thickness, and friction surface are designed to meet the specific requirements of the M3 brake system, including the operating characteristics of the calipers and brake pads used as standard in these versions.

This ensures the correct position of the disc relative to the caliper, hub, and sensors, which translates into stable, predictable braking and even wear of the friction linings.

Technical and functional characteristics

The rear right brake disc in the M3 operates under demanding conditions – at high wheel rotational speeds, high thermal loads, and dynamic stress. The original design ensures:

• adequate disc rigidity, reducing the risk of runout and vibrations during braking,
• correct working thickness, allowing for safe interaction with the caliper and pistons,
• maintenance of axial alignment relative to the hub, which affects driving comfort and steering precision.

Positioning on the vehicle as rear – right side eliminates the issue of universality – the part is prepared for a specific position, which facilitates installation and minimizes the risk of incorrect selection.

Benefits of using an original brake disc

Using an original rear right brake disc in the BMW 3 Series M3 allows you to maintain the factory performance parameters of the brake system. Key advantages include:

• Compatibility with the factory system – no need to modify calipers, hubs, or shields,
• consistent braking characteristics of the rear axle relative to the front,
• proper cooperation with vehicle safety systems, such as ABS or stability control,
• easier diagnostics and service, thanks to the retention of original specifications.

This solution is particularly beneficial for users who want to keep their car in a configuration close to the factory state, without experimenting with replacements of uncertain parameters.

Component condition and service application

The brake disc is offered as a used original BMW component, which allows for an economical repair of the brake system while maintaining the factory origin of the part. It can be used both for standard replacement of worn components and for rebuilding the rear axle after mechanical damage.

Before installation, standard service procedures are recommended: inspection of the friction surface, runout measurement, and verification of the minimum allowable thickness in accordance with the vehicle manufacturer's documentation. A correctly selected and installed disc affects braking stability and even pad wear, which has a direct impact on driving safety.

Selection support and guide materials

When selecting used brake system components, it is worth using reliable sources of knowledge. Detailed tips on assessing the condition of discs, calipers, and ABS components can be found in the article: Second-hand brake system: how to safely choose discs, calipers, and ABS?. This is a practical checklist that helps verify key aspects before purchase and installation.

If you are planning a comprehensive repair or upgrade of the braking zone in your BMW and need other components from the same group, such as discs, pads, or brake lines, check the available parts in the BMW Brake discs category.