Battery Cable Mercedes W204 C207 Starter Alternator Wiring Harness A2044405736

The Mercedes W204/C207 Battery-Starter-Alternator Cable Harness is a factory-original power supply component designed for Mercedes C-Class and E-Class Coupe models. It ensures a stable electrical connection between the battery, starter, and alternator, which directly impacts reliable engine starting and proper battery charging during daily operation.

Specifications and technical data

• SKU: rhd-A2044405736
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A2044405736
• Substitutable numbers: A2044405736, A 204 440 57 36
• Category: Battery Accessories

Vehicle Application and Function

The presented starter and charging cable harness has been specifically designed for Mercedes vehicles of the W204 and C207 series. It connects key electrical system components – the battery, starter, and alternator – ensuring adequate conductivity and minimizing voltage drops during engine start-up and operation.

Thanks to its design that adheres to factory solutions, the harness maintains proper cable routing within the engine bay, minimizing the risk of chafing, overheating, and unwanted electrical system interference.

Construction and Fitment for Mercedes W204 / C207

This harness is an original Mercedes part, meaning it retains the original geometry, cable lengths, and mounting points. This facilitates installation in factory locations without the need for electrical system modifications, custom connectors, or bracket adjustments.

Factory-terminated cables and appropriately selected power cable cross-sections allow for safe transfer of starting currents and stable alternator operation across the vehicle's full electrical load range.

Benefits of Using an Original Harness

Using an original cable harness in the starting and charging system offers a range of practical benefits:

• maintaining electrical parameters as specified by the vehicle manufacturer,
• more reliable engine starting under heavy system loads,
• more stable battery charging under various operating conditions,
• better fit with existing brackets and cable routing in the engine bay,
• reduced risk of failures resulting from makeshift repairs to the electrical system.

This solution is particularly recommended for issues with starting, voltage drops, or after previous non-factory modifications to the power supply system.

Item Condition and Service Application

The offered harness belongs to the Battery Accessories group and is a used part from disassembly, allowing for economical repair of the power supply system while maintaining the original manufacturer's specifications. It is suitable for both standard replacement of a worn-out cable and for comprehensive renovation of the engine bay's electrical system.

By retaining its factory construction, this component can be used as a direct replacement for a damaged harness, without interfering with other starting and charging system components.

Complementary Mercedes Battery Accessories

If you are planning a comprehensive repair or upgrade of the power and starting area in your Mercedes and require other parts from the same group, such as ground cables, additional power cables, or battery mounting hardware, check the available parts in the Mercedes Battery Accessories category.

To better plan your vehicle's comfort upgrades, it is also worth consulting a guide on interior equipment replacement – you will find practical tips in the article Interior Makeover: How Branded Used Seats Enhance Comfort and Car Value.