BMW X3 F25 B+ Distribution Box Battery Power Red Rear Control Unit 9206140

Visual condition of the part

The product shows signs of use visible in the photos.

BMW X3 F25 B+ Distribution Box Battery Power Red Rear Control Unit is a specialized power supply component designed for installation in the rear of the vehicle. Its original BMW origin ensures proper fitment with the electrical system and stable power distribution under demanding operating conditions. This used component from the Batteries category allows for an economical yet technically sound repair of the power supply system in the BMW X3 F25.

Specifications and technical data

• SKU: 9343259-1
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 9343259
• Substitutable numbers: 9343259, 61149343259, 9206140, 61149206140, KD
• Location on the vehicle: Rear
• Color: Red
• Category: Batteries

Purpose and function of the power distribution box

The power distribution box in the BMW X3 F25 is responsible for the controlled distribution of electrical energy from the power supply area in the rear of the vehicle to individual circuits. A correctly selected component of this type stabilizes current flow, reduces voltage drops, and supports the safe operation of electrical consumers powered from the battery line.

Its location in the rear section of the body facilitates shorter connections to the battery and improves the organization of electrical harnesses. As a result, the power supply system remains easier to service, and the diagnosis of potential faults is simplified.

Design, color, and mounting fitment

The presented power distribution box is a component dedicated to the BMW X3 F25, which translates into correct mounting points and compatibility with factory electrical connectors. The use of a distinctive red color facilitates quick identification of the component in the mounting compartment and reduces the risk of errors during service work.

The original design from the BMW group was engineered for proper conductivity and resistance to current loads typical for the power supply system in this model. Thanks to this, the distribution box maintains stable operating parameters in daily use, even with frequent starting and varying temperature conditions.

Benefits of using an original BMW distribution box

Using an original power distribution box in the BMW X3 F25 brings a number of practical benefits:

• Full structural compatibility with the vehicle's factory electrical system.
• Stable power distribution in the rear part of the power supply system.
• Easier identification thanks to the distinct color of the component.
• Reduced risk of starting and power supply issues resulting from improper voltage distribution.
• Ability to maintain consistency with other battery system components.

A used OEM component is a sensible choice when the priority is to maintain the original architecture of the installation while optimizing repair costs.

Application in the battery system and rear installation

The power distribution box works with the battery and wire harnesses leading to consumers located in the rear of the BMW X3 F25. A correctly selected component helps maintain an adequate power reserve for systems powered from this area, which is important for both user comfort and the durability of other installation elements.

Replacing the distribution box is recommended in case of signs of overheating, contact corrosion, or circuit continuity problems in the rear power supply area. Installing an original component allows for restoring proper voltage distribution without the need to modify the factory harness.

Condition, origin, and selection of used parts

The offered power distribution box is a used part, sourced from a dismantled BMW vehicle. Such components are frequently chosen by users who expect original build quality and fitment, while simultaneously reducing costs compared to new replacements. In the case of power supply system components, it is particularly important that the design and parameters are consistent with the manufacturer's factory specifications.

If you are considering whether a better solution is refurbishment or installing a used OEM component, an article describing the differences between these approaches may be helpful – check the guide on choosing between a refurbished and a used original part to tailor the repair strategy to your usage style and budget.

If you are planning a comprehensive repair or upgrade of the battery power supply area in your BMW and need other elements from the same group, such as power cables, mounting brackets, or additional power distribution modules, check the available parts in the BMW Batteries category.