BMW 5 6 E60 E61 E63 E64 545i 645Ci 550i Front Wheel Brake Disc 348X30

BMW 5 6 E60 E61 E63 E64 545i 645Ci 550i Front Wheel Brake Disc is an original brake system component designed for the front axle, with an operating diameter of 348 mm and a thickness of 30 mm. Thanks to its factory geometric parameters, it ensures stable brake pad guidance, predictable deceleration, and proper cooperation with ABS and DSC systems. This is a solution for users looking for parts that maintain the manufacturer's specifications without compromising on fitment.

Specifications and technical data

• SKU: 6763824
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 6763824
• Substitutable numbers: 34216763824, 6763824, BG
• Location on the vehicle: Front
• Category: Brake Disc Rotors

Purpose and compatibility

The presented brake disc has been developed for the front axle of BMW 5 and 6 series models of the E60, E61, E63, and E64 generations with 545i, 645Ci, and 550i engines. The 348x30 mm construction meets the factory requirements for more powerful engine versions, where the braking system must handle higher thermal and mechanical loads.

Choosing this disc is appropriate wherever it is required to maintain the original braking characteristics, uniform pad pressure, and the correct friction surface for heavier, dynamic BMW configurations.

Construction and operating parameters

The disc with a diameter of 348 mm and a thickness of 30 mm provides a large working surface, which translates into effective heat dissipation and braking force stability during repetitive, heavy braking. Key parameters are maintained:

• outer diameter matched to the calipers used in the 545i, 645Ci, and 550i versions,
• working thickness selected for the appropriate wear range and cooperation with OEM-specification brake pads,
• hub geometry and mounting surfaces compliant with BMW factory requirements.

As a result, the disc maintains thermal stability and reduces the risk of steering wheel vibration and runout during braking, provided it is installed correctly and used with high-quality brake pads.

Application in the braking system

As an element of the Brake discs category, this model works in tandem with dedicated front axle brake pads and calipers. Proper selection of diameter and thickness is crucial for:

• maintaining uniform pressure across the entire working surface,
• ensuring the correct operating travel of the pistons in the caliper,
• proper cooperation with the vehicle's active safety systems.

In higher-power vehicles such as the 545i, 645Ci, or 550i, the 348x30 mm disc allows for safe deceleration during highway driving and dynamic use, while maintaining predictable braking characteristics.

Characteristics of the used part

The offered disc is a used component, which allows for lower service costs while maintaining original BMW specifications. This type of solution is particularly beneficial for:

• repairs of intensively used vehicles where the cost-to-effect ratio is important,
• maintaining consistency with the factory braking system without using aftermarket replacements with uncertain parameters,
• projects where compliance with the original vehicle design is a priority.

Before installation, every used disc should be verified for thickness, axial runout, and any signs of overheating to ensure safe operation.

Installation recommendations and additional resources

When replacing a disc on the front axle, it is recommended to replace both discs on the same axle simultaneously and to select brake pads with parameters consistent with BMW requirements for a 348 mm diameter. It is also worth cleaning the hub contact surfaces and checking the condition of the calipers and brake lines to fully utilize the potential of the newly installed component.

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.

To better understand how to optimally combine used brake system components and how to reduce service costs without sacrificing safety, it is worth reading the guide: Brake calipers under the microscope: How to effectively reduce repair costs by choosing proven recycled parts.