Fuse Box BMW G20 G30 Power Distribution Control Unit Box Rear 8734160

Fuse Box BMW G20 G30 Power Distribution Control Unit Box Rear is an original electrical system component responsible for stable power distribution in the rear of the vehicle. As a component from the Fuses and fuse boxes group, it provides an organized, serviceable circuit architecture, which facilitates diagnostics and subsequent repairs of the electrical system.

Specifications and technical data

• SKU: 8734160
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 8734160
• Substitutable numbers: 8734160, 61148734160
• Location on the vehicle: Rear
• Category: Fuses & Fuse Boxes

Purpose and function in the BMW installation

The presented rear fuse box for the BMW G-series (including G20, G30) acts as a local power distribution center in the trunk and rear body area. This module integrates circuits protecting key electrical consumers, which allows for logical separation of the installation and limits the length of wiring harnesses.

Its placement in the rear of the vehicle promotes clear cable routing and quick service access. Thanks to this, any fuse replacement or circuit diagnostics can be carried out efficiently, without interfering with the front part of the installation.

Construction and technical advantages

The BMW rear fuse box has been designed as an element of the power management system, taking into account the manufacturer's high requirements for electrical safety. The module's design provides for:

• an organized layout of fuse and relay sockets,
• dedicated connectors for integration with the vehicle's wiring harness,
• a housing adapted for mounting in the rear of the body.

Such a solution improves the clarity of the installation, facilitates the localization of specific circuits, and reduces the risk of errors during service. Original BMW workmanship means compliance with factory quality and electrical compatibility standards.

Benefits of using an original fuse box

Using a factory fuse box in the rear of a BMW translates into a number of practical operational benefits:

• secure fit to the vehicle's installation without the need for harness modifications,
• preservation of the original circuit architecture and protection logic,
• easier diagnostics using factory diagrams and service tools,
• consistency with other elements of the power management system.

For the user, this means a lower risk of compatibility issues, and for the workshop – faster and more predictable handling of the electrical system. In the case of extensive installations in modern BMWs, this has a direct impact on the reliability of the onboard electronics.

Condition, installation, and service application

The offered fuse box is a used part, which in BMW service practice often represents a reasonable compromise between cost and maintaining full compliance with the factory installation. The module is intended for installation in the rear of the vehicle, in the place provided by the manufacturer, using original mounting points and harness connectors.

Replacing the fuse box is particularly recommended in situations where there has been thermal damage, contact corrosion, water ingress, or other faults affecting power stability. Using an original module allows for restoring the correct operation of circuits without interfering with the installation structure.

System expansion – related BMW elements

If you are planning a comprehensive repair or upgrade of the electrical zone in your BMW and need other elements from the same group, such as additional boxes, power distribution modules, or fuse housings, check the available parts in the BMW Fuses and fuse boxes category.

For a broader perspective on the cost-effectiveness of using original used components in premium cars, you can read an article describing the strategy for selecting parts for Mercedes – you can find it here: Mercedes – comfort, prestige, and durability. Why is it worth choosing original used parts?.