BMW X3 E83 LCI Cable Alternator Starter Base B 3417160

BMW X3 E83 LCI Cable Alternator Starter Base B is an original electrical system component responsible for a secure connection between the alternator, the starter, and the positive terminal of the electrical system. This used cable from the Cables, harnesses, and connectors category allows for a technically correct repair of the power supply system while maintaining factory performance characteristics. It is a practical solution for BMW users who expect a robust component at a reasonable price.

Specifications and technical data

• SKU: 3417160
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 3417160
• Substitutable numbers: 5126571, 12513417160, 3417160, 12423403181, 3403181, 12423403180, 3403180, EM
• Category: Wiring Harnesses, Cables & Connectors

Function and application of the B+ cable in the BMW X3 E83

The B+ cable in the BMW X3 E83 is responsible for stable conduction of starting and charging current between the alternator, the starter, and the vehicle's electrical system. A properly selected cable in this area is crucial for:

• efficient engine starting under various electrical loads,
• maintaining the correct battery charging voltage,
• reducing voltage drops and energy losses in the system,
• safe operation of other electrical consumers in the vehicle.

The original cable design is matched to the geometry of the BMW X3 E83 engine bay, which facilitates harness routing and minimizes the risk of abrasion or overheating.

Construction and advantages of the original BMW cable

The alternator–starter B+ cable belongs to the Cables, harnesses, and connectors group, meaning it has been designed with the appropriate wire cross-section, insulation resistance, and correct connector terminations in mind. In practice, this translates into:

• factory-fit length and shape for the mounting system in the BMW X3 E83,
• terminals adapted for high starting currents,
• resistance to typical operating conditions in the engine bay (temperature, vibration, moisture),
• easier installation without the need for system modifications.

By maintaining the original electrical specification, the cable ensures repeatable conduction parameters, which is important for diagnostics and maintenance of the charging system.

Used condition and economic aspects

The offered item is in used condition, which represents a favorable compromise between cost and functionality. In many cases, such a cable allows for the restoration of proper starting and charging system operation without the need to invest in a new harness. This solution is particularly attractive for maintenance repairs of older BMW X3 E83 models, where both technical efficiency and the cost-effectiveness of the entire service operation are important.

If you want to better understand the differences between original, replacement, and used parts and their long-term cost-effectiveness, it is worth reading our guide: Original, replacement, or used parts – what to choose for car repairs.

Selection by numbers and compatibility

The alternator–starter B+ cable is a component that should be selected based on manufacturer markings and vehicle data. The product has an assigned OEM part number and interchangeable numbers, which facilitates verification of compatibility with a specific BMW X3 E83 configuration. This allows for precise matching of the cable to the existing installation, reducing the risk of assembly issues or electrical parameter problems.

Technical product information such as SKU, OEM part number, reference numbers, and brand are also available, allowing for unambiguous identification of the element in service catalogs and parts selection systems.

Support for BMW electrical system expansion

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 additional power cables, engine harnesses, or service connectors, check out the available parts in the BMW cables, harnesses, and connectors category.

Combining a properly selected B+ cable with other system components allows for maintaining the consistency of the entire system, facilitates diagnostics, and ensures predictable vehicle behavior in daily operation.