Mercedes C300h W205 Prefuse Box Cable Harness Loom Cable A2054403136

Mercedes C300h W205 Prefuse Box Cable Harness Loom Cable is an original electrical installation component, designed for the precise connection of the fuse box to other vehicle sub-assemblies. Thanks to its factory-fit for the C-Class W205 model, it ensures stable circuit power supply and correct communication between modules. This is a practical solution for workshops and users who want to restore the full functionality of the electrical system without installation compromises.

Specifications and technical data

• SKU: A2054403136
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A2054403136
• Substitutable numbers: A2054403136, A 205 440 31 36
• Part type: Wire Harness
• Category: Wiring Harnesses, Cables & Connectors

Purpose and function in the electrical system

The fuse box cable harness in the Mercedes C300h W205 is responsible for routing power and control signals between the fuse box and key consumers in the vehicle. The appropriate architecture of wires and connectors allows for:

• safe power distribution to individual circuits,
• maintaining the correct sequence and logic of connections,
• minimizing voltage drops and interference,
• easier troubleshooting of installation faults. By maintaining the factory pin layout and wire cross-sections, the harness supports the proper operation of protection devices and control modules, which directly impacts the reliability of the entire electrical system.

Construction, connectors, and compatibility

The element belongs to the Wires, harnesses, and connectors group, which means it was designed as an integral part of the vehicle's electrical installation. The construction includes:

• factory connectors matched to the fuse box and corresponding sockets in the vehicle,
• wires with selected cross-sections, adapted to the current loads of specific circuits,
• appropriate routing and branching, facilitating installation in original mounting points. The original origin from the Mercedes brand translates into a proper fit with the C-Class W205 installation, without the need for modifications, soldering, or creating additional adapters.

Condition, service application, and installation benefits

The product is offered as a used original element, which in practice means the possibility of an economical repair while maintaining factory specifications. This type of harness is particularly useful in situations where:

• mechanical damage to the wires has occurred (abrasions, melting, insulation cracks),
• there are problems with the power supply of selected circuits,
• it is necessary to replace a part of the installation after a collision or interference with the electrical system. Using an original harness allows for limiting the risk of installation errors typical of systems built from scratch, and also facilitates subsequent diagnostics using factory diagrams.

Part selection by numbers and integration with the vehicle system

For the correct selection of the harness for a specific C300h W205 equipment version, it is crucial to use the manufacturer's markings. The product description includes the OEM part number and information that the element has interchangeable numbers, which facilitates compatibility verification with other variants of the same harness. In combination with the SKU marking in the online store, this allows for quick confirmation of compatibility with a specific vehicle unit.

Installation expansion and related elements

If you are planning a comprehensive repair or upgrade of the electrical installation area in your Mercedes and need other elements from the same group, such as additional harnesses, power cables, or module connectors, check the available parts in the Mercedes Wires, harnesses, and connectors category. When working on the electrical and ride comfort systems, it is also worth paying attention to the condition of components responsible for air conditioning; more practical tips regarding safe component replacement can be found in the article A/C Compressor – failure symptoms, causes, and safe replacement.

Summary

Mercedes C300h W205 Prefuse Box Cable Harness Loom Cable is a practical solution for those who want to restore the correct operation of the electrical installation in their car using an original component. Factory fit, proper wire architecture, and compatibility with vehicle systems make it a functional service choice for professional workshops and conscious Mercedes users.