Brake Caliper BMW E90 E91 Front Right O/S Brake Unit Carrier Housing 57/30/348

Brake Caliper BMW E90 E91 Front Right O/S Brake Unit Carrier Housing is an original braking system component from the Brake calipers and carriers category, designed for installation on the front right axle of the vehicle. This solution is intended for users who expect factory-fitment, stable braking system performance, and full compatibility with the suspension and hub design of BMW 3 Series E9x models.

Specifications and technical data

• SKU: 6773202-3
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 6773202
• Substitutable numbers: 34116773202, 6773202, 34116773203, 6773203, 57/30/348, BG
• Location on the vehicle: Front, Right
• Category: Calipers & Brackets

Purpose and fitment for BMW E90, E91, E92

The presented caliper has been designed specifically for the BMW 3 Series E90, E91, and E92 platform, taking into account the front suspension geometry and braking system requirements. The placement on the vehicle is the front right side, which ensures proper cooperation with the brake disc, hub, and brake line on that side of the car.

By maintaining factory mounting parameters, the caliper allows for the preservation of correct braking force, even pad pressure, and stable operation of the ABS/DSC system. This is particularly important in BMW vehicles, where steering precision and predictable behavior during braking are crucial for safety and driving comfort.

Construction and function of the brake caliper

The brake caliper acts as an actuator in the braking system – it converts brake fluid pressure into the force pressing the pads against the disc. This model features a design adapted for the front axle, optimized for effective heat dissipation and stable piston operation across a wide temperature range.

Key functional features of this caliper include:

• precise guidance of brake pads in the carrier,
• stable piston operation during repeated braking cycles,
• maintenance of proper housing rigidity under load,
• compatibility with the factory brake line and steering knuckle mounts.

This configuration promotes even pad wear, predictable braking force, and a reduction in vibrations transmitted to the steering wheel.

Original origin and used condition

The caliper comes from the BMW product line, which ensures the preservation of factory quality and construction standards. Its original origin translates into proper fitment with suspension components, the hub, and the brake disc, without the need for modifications or the use of additional adapters.

The item is offered as a used part, which allows for a significant reduction in repair costs compared to new components, while maintaining performance characteristics consistent with the vehicle manufacturer's specifications. This is a particularly beneficial solution for comprehensive braking system maintenance when more than one component is being replaced.

Benefits of using an original used caliper

Choosing an original, used brake caliper for a BMW 3 Series E9x offers a number of practical benefits:

• Factory fitment – preservation of original mounting geometry and compatibility with other braking system components.
• Service cost savings – the ability to repair the braking system at lower financial outlays than with new parts.
• Consistency with safety systems – compatibility with factory ABS/DSC systems, without interfering with operating parameters.
• Technical predictability – maintaining the braking characteristics known from the original vehicle configuration.

For many BMW E90, E91, E92 users, this is a reasonable compromise between quality and cost, especially when operating the car in daily city and extra-urban traffic.

Selection, installation, and technical support

Before installation, it is recommended to verify the compatibility of the caliper with the specific engine version and equipment level of the vehicle, as well as to check the condition of the discs, pads, and brake lines. A properly selected and installed caliper minimizes the risk of uneven braking, vehicle pulling during braking, and accelerated wear of friction elements.

To learn more about the cost-effectiveness of using original, used braking system components and the principles of their proper selection, it is worth reading the article: Brake calipers under the microscope: How to effectively reduce braking system repair costs by choosing proven recycled parts. This is a practical source of information for drivers and workshops that want to combine safety with rational service costs.

If you are planning a comprehensive repair or upgrade of the braking area in your BMW and need other components from the same group, such as additional calipers, carriers, or mounting brackets, check the available parts in the BMW Brake calipers and carriers category.