BMW 7 E65 E66 Rear Left Right N/O/S Wheel Ventilated Brake Disc Set 345X24

BMW 7 E65 E66 Rear Left Right N/O/S Wheel Ventilated Brake Disc Set is a set designed for the left and right side of the rear axle, with an operating diameter of 345 mm and a thickness of 24 mm. The set was designed as an original BMW solution, ensuring stable braking parameters and consistency with the factory characteristics of the luxury 7 Series braking system. Thanks to the ventilated design, the discs effectively dissipate heat, which promotes consistent braking force during intensive use.

Specifications and technical data

• SKU: 6864054
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 6864049
• Substitutable numbers: 34216864054, 6864054, 34216765889, 6765889, BG
• Location on the vehicle: Rear, Right, Left
• Category: Brake Disc Rotors

Purpose and compatibility

The set of rear ventilated discs is dedicated to BMW 7 Series E65 and E66 models, intended for both sides of the rear axle – left and right. Using the same geometry and dimensions as the factory solution allows for proper cooperation with calipers, pads, and braking assistance systems, such as ABS or stability control.

The placement on the vehicle covers the rear axle on both the driver and passenger sides, which allows for replacing the set in a single service operation without the need to match different types of discs on both sides.

Ventilated design and operating parameters

Brake discs with a diameter of 345 mm and a thickness of 24 mm belong to the segment of solutions used in heavier, powerful limousines, where effective heat energy dissipation is crucial. The ventilated construction improves air circulation between the working surfaces, reducing the risk of overheating and a drop in braking efficiency under prolonged load.

Such selected operating dimensions ensure an adequate friction surface for the brake pads, which translates into stable deceleration and predictable vehicle behavior during emergency braking and in daily operation.

Benefits of using original BMW discs

• Factory fitment for the hub, calipers, and brake hardware of the BMW 7 Series E65/E66.
• Consistent performance with the vehicle's safety systems.
• Ventilated design that helps maintain a stable operating temperature.
• Possibility to replace the rear axle set in a single service operation.

Using original BMW brake discs allows for maintaining predictable vehicle behavior, which is particularly important in a heavy luxury limousine where the braking system operates under significant load.

Condition and service application

The offered set belongs to the Brake discs category and is a used item, making it an attractive cost-effective alternative while maintaining factory specifications. It can be used both for standard maintenance replacement and for brake system repairs after mechanical damage, provided it is verified by a qualified service center for permissible wear and axial runout values.

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.

Safe selection of used brake system components

When choosing used brake discs, it is worth paying attention to the condition of the working surfaces, evenness of wear, and the absence of cracks or deep scratches. It is also good practice to check the disc thickness and compare it with the limit values provided by the vehicle manufacturer.

To organize the verification and assembly process, a guide describing step-by-step how to assess the condition of discs, calipers, and ABS components will be helpful. Detailed tips can be found in the article Second-hand brake system: how to safely choose discs, calipers, and ABS?, which provides a practical checklist for the conscious selection of used components.

Summary

BMW 7 E65 E66 Rear Left Right N/O/S Wheel Ventilated Brake Disc Set with a diameter of 345 mm and a thickness of 24 mm is a solution intended for users who expect to maintain factory braking characteristics while optimizing costs. A properly selected and verified set allows for efficient maintenance of the rear axle, ensuring predictable operation of the braking system in daily use and during dynamic driving.