BMW 3 Series E90 E91 E92 E93 Positive Battery Lead Distribution Box Cable Rear

Description

BMW 3 Series E90 E91 E92 E93 Positive Battery Lead Distribution Box Cable Rear is an original electrical system component designed for the 3 Series E90 and E91 models. It ensures a stable connection between the positive battery terminal and the rest of the electrical system, which is crucial for reliable starting and the operation of all electrical consumers. Thanks to its factory-fit design for this specific generation of BMW 3, installation is predictable and technically organized.

Specifications and technical data

• SKU: 9125036
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 9125036
• Substitutable numbers: 61129125036, 9125036, 611291330726112912503761126938497, 61126938498, 9133072912503769384976938498, 61129133072, 9133072, 61129125037, 9125037, 6938498, 61126938497, 6938497
• Location on the vehicle: Rear
• Category: Wiring Harnesses, Cables & Connectors

Purpose and function in the BMW 3 E90/E91 electrical system

The presented positive cable is designed as a component of the power supply system in the BMW 3 Series E90 and E91 generations. Its task is to safely and efficiently transfer energy from the battery to the vehicle’s other electrical components. Its location in the rear of the car means the cable is adapted to the routing characteristic of these models, which facilitates proper harness installation and maintains the factory geometry of the system.

Construction and vehicle fitment

As an element from the Cables, harnesses, and connectors category, the positive battery cable is constructed with the appropriate cross-section and resistance to current loads typical for the engines used in the BMW 3 E90/E91. The terminals and connectors are factory-matched to the vehicle’s connection points, which limits the risk of looseness, contact overheating, or improper installation. The appropriate length and shape of the cable allow it to be routed in accordance with the original brackets and mounts in the rear of the body.

Benefits of using an original positive cable

Using an original positive battery cable in a BMW 3 E90/E91 provides a number of practical benefits:

• maintenance of the vehicle’s factory electrical system characteristics,
• secure connection of the positive battery terminal to the power supply system,
• reduction of voltage drops thanks to the properly selected cable cross-section,
• compatibility with original mounting points and harness routing in the rear of the car.

As a result, the cable supports stable operation of the starter and onboard electronics, which is particularly important in vehicles equipped with extensive comfort and safety systems.

Component condition and service application

The offered BMW 3 Series E90 E91 E92 E93 Positive Battery Lead Distribution Box Cable Rear comes from dismantling and is intended for service applications as a spare part. It is suitable for replacing a damaged, overheated, or corroded cable, as well as for post-accident repairs in the rear of the vehicle where the electrical system may have been damaged. Choosing an original component from this group allows you to maintain technical consistency with the other system components.

Support with selection and additional information

The cable is assigned to a specific manufacturer reference, which facilitates verification of compatibility with a given BMW 3 E90 or E91 unit. In case of doubt during selection, it is worth comparing the routing and type of the cable used with the element currently installed in the vehicle, paying attention to the location in the rear of the body and the type of connectors used.

If you are planning a comprehensive repair or upgrade of the electrical system area in your BMW and need other elements from the same group, such as power cables, signal harnesses, or service connectors, check the available parts in the BMW cables, harnesses, and connectors category.

For more extensive repair work, especially after a collision, guide materials explaining when it is worth reaching for dismantled parts instead of replacements may also be helpful – you can find more on this topic in the article Post-accident repair of your car: why are used body parts a better choice than replacements?.