Mini Cooper One R55 R55N LCI High PL SPEG H4 Fuse Distribution Box 3455436

Visual condition of the part

The product shows signs of use visible in the photos.

Mini Cooper One R55 R55N LCI High PL SPEG H4 Fuse Distribution Box is a specialized fuse distribution box designed for post-facelift Mini R55 series models. This component belongs to the Fuses and fuse boxes group and is responsible for stable power supply and protection of the vehicle's key electrical circuits. Thanks to its OEM-compliant design, it is a precisely matched component for the factory Mini installation.

Specifications and technical data

• SKU: 3455436-1
• Mark: Mini (Genuine OE)
• Condition: Used
• OEM Part Number: 3455436
• Substitutable numbers: 61353451926, 61353457046, 61353450824, 61353448964, 61353457384, 61353453295, 61353455444, 61353456861, 61353453738, 3450435, 3455535, 3455243, 3457418, 3457169, 3457510, 3454360, 3451926, 3457046, 3456915, 3450408, 3450824, 3448964, 3457384, 3453295, 3455444, 3456861, 3453738, 613
• Category: Fuses & Fuse Boxes

Purpose and function in the Mini electrical system

The described fuse box acts as a central power distribution point in the electrical compartment of the Mini Cooper One R55 / R55N LCI. It is responsible for distributing power to individual circuits and protecting the installation against short circuits and overloads. The Fuse Distribution Box design ensures organized circuit routing, which facilitates diagnostics and maintenance of the electrical system.

The High PL SPEG H4 version is designed for equipment configurations used in Mini models after the facelift (LCI), ensuring compatibility with the electrical architecture of these vehicles. Using an original fuse box allows for maintaining the system's operating parameters at the level intended by the manufacturer.

Construction and technical advantages of the fuse box

The fuse distribution box has been developed as an OEM component, which means it maintains the factory layout of sockets, connectors, and current paths. This facilitates installation in place of a worn or damaged part without the need for wiring modifications. Precise fitment for the R55 platform reduces the risk of installation errors and compatibility issues.

Key technical benefits include:

• preservation of original connector geometry and mounting points,
• consistency with the factory Mini electrical diagram,
• possibility of using the existing wiring harness without adaptation,
• organized fuse layout for easier maintenance.

As a result, the box is suitable both for standard replacement of a damaged component and for more extensive service work within the electrical system.

Condition, origin, and fitment for Mini

The offered item comes from the Mini parts line and is classified as used, which in practice means it maintains the original specification at a more favorable cost compared to a new component. For the user, this means the ability to restore the proper operation of the electrical system while maintaining factory manufacturing standards.

The product is intended for use in the Mini Cooper One R55 / R55N after the facelift, in configurations designed for the High PL SPEG H4 version. Before installation, it is recommended to verify compatibility with the specific vehicle equipment version to avoid issues with wiring fitment and individual circuit support.

Safe operation and practical application

Using an original fuse box in a Mini has a direct impact on the stability of comfort systems, lighting, control units, and other receivers powered by the main installation. A properly selected component helps reduce the risk of:

• incorrect power distribution between circuits,
• random voltage drops in critical systems,
• overheating of makeshift connections,
• diagnostic problems resulting from installation incompatibility.

For workshops and private users, this means a more predictable repair process and easier identification of potential faults in the future. Maintaining the factory electrical architecture is particularly important in modern vehicles, where many control units communicate with each other within a single network.

Related items from the Mini Fuses and fuse boxes group

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

Additional technical information and knowledge for advanced users

When working with the electrical systems of modern cars, it is worth using reliable sources of knowledge regarding modifications and the selection of used components. If you are interested in the topic of safe power increases and informed selection of used subassemblies, an article describing the selection of turbochargers in highly stressed units may be helpful – you can find it here: 2.5 TFSI DAZA – how to safely increase the power of an Audi RS3 by buying used turbochargers.