BMW X3 E83 Front Brake Disc Ventilated Wheel Disc 325mm Left Right N/O/S 3400151

BMW X3 E83 Front Brake Disc Ventilated Wheel Disc 325mm Left Right N/O/S is an original brake system component designed for installation on the front axle, on either the left or right side. Thanks to its ventilated design and precise fitment for the X3 E83 model, it provides a stable foundation for effective heat dissipation and maintaining consistent braking force. This is the ideal solution for users seeking factory-spec fitment and predictable performance from their braking system.

Specifications and technical data

• SKU: 3400151-2
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 3400151
• Substitutable numbers: 34113400151, 3400151, 0986479348, 0 986 479 348
• Location on the vehicle: Front, Left, Right
• Category: Brake Disc Rotors

Purpose and fitment for the BMW X3 E83

This disc has been specifically designed for the front axle of the BMW X3 E83, with the flexibility to be installed on both the left and right sides. This means that the geometry, working diameter, and mounting hole pattern are perfectly matched to the factory calipers and hubs of this model, ensuring secure seating and proper interaction with the brake pads.

By adhering to the original manufacturer's specifications, the disc works seamlessly with the stock ABS and electronic stability control systems, ensuring predictable vehicle response during braking in various road conditions.

Ventilated design and performance characteristics

The brake disc features a ventilated design, which means it includes internal channels between the friction surfaces. This structure supports more intensive cooling during braking, reduces the risk of overheating, and helps maintain a stable coefficient of friction during repeated, heavy braking.

The ventilated construction also helps reduce brake fade, which is the loss of braking effectiveness at high operating temperatures. For the driver, this translates to more consistent brake pedal feel, better vehicle control, and a greater safety margin in emergency situations.

Vehicle placement and installation aspects

The disc is intended for installation on the front axle and can be used on either side of the vehicle. This simplifies part selection when replacing a pair of discs, as a single reference can be used for both the driver and passenger sides. Such a solution streamlines the service process and reduces the risk of errors when ordering parts.

When installed correctly – maintaining the proper bolt tightening torque, cleaning the hub contact surface, and checking for radial runout – the disc ensures even contact with the brake pads, resulting in stable braking without unwanted steering wheel vibrations.

Benefits of using an original BMW brake disc

Using an original brake disc in your BMW X3 E83 primarily ensures reliable fitment with the factory braking system. The correct thickness, diameter, and friction surface profile allow for even pad wear, which helps maintain stable braking performance over a longer service life.

An OEM component is also a sensible compromise between cost and quality – you retain the performance characteristics intended by the vehicle manufacturer while optimizing your repair budget. When combined with properly selected brake pads, you can achieve a cohesive, predictable braking system that performs well in daily use.

Brake system expansion and technical knowledge

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 additional discs, pads, or brake lines, check out the available parts in the BMW Brake Discs category.

To better understand how the selection of individual components affects the durability and maintenance costs of the system, it is worth consulting specialized materials. Practical tips on choosing salvaged brake components can be found in the article Brake calipers under the microscope: How to effectively reduce brake system repair costs by choosing proven recycled parts, which will help you consciously plan the service of your car's braking system.