Alternator BMW E60 E61 E87 E90 E91 N52 Generator 155A Bosch LRA02970

Visual condition of the part

The product shows signs of use visible in the photos.

Alternator BMW E60 E61 E87 E90 E91 N52 Generator 155A Bosch is an original component from the Alternators and generators group, designed for BMW N52 petrol engines. This used Bosch alternator with a 155A output ensures a stable power supply for the vehicle's electrical system and proper battery charging under demanding operating conditions.

Specifications and technical data

• SKU: 7543083-3
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 7543083
• Substitutable numbers: 12317543083, 7543083, 12317542529, 7542529, 12317551256, 7551256, 12317550967, 7550967, LRA02970, BG
• Fuel type: Petrol
• Category: Alternators & Generators

Application and compatibility

The presented alternator is intended for popular BMW 5 Series E60/E61, 1 Series E87, and 3 Series E90/E91 models equipped with N52 petrol engines. The OEM Bosch design has been engineered for a precise fit with factory mounts, electrical connections, and the accessory belt drive system, facilitating installation in place of a worn-out component.

By maintaining the original geometry and operating parameters, the alternator works seamlessly with the factory engine management and onboard electrical system, minimizing the risk of charging issues, voltage drops, or electronic system errors.

Operating parameters and technical characteristics

The 155A Bosch alternator has been selected to meet the energy demands of modern BMW models, which power numerous electrical consumers – from comfort systems and safety features to extensive onboard electronics. The current reserve allows for stable power supply even under high load, which translates into reliable engine starting and proper operation of all systems.

The design solution used by Bosch ensures effective cooling and appropriate durability of bearings and rotating components. As a result, the alternator is prepared for continued use in typical road conditions, provided the vehicle receives proper maintenance.

Condition, origin, and benefits of choosing a used part

The offered item comes from disassembly and is classified as a used BMW alternator. In practice, this means it is an original OEM component that retains factory design parameters and is better suited to the vehicle than many low-quality replacements. Choosing a used OEM alternator is often a beneficial compromise between repair costs and reliability and compatibility with the car's electrical system.

The alternator is designed for petrol engines, which is important when selecting parts for a specific version of the power unit. Using the correct type of alternator reduces the risk of overloading the charging system and voltage problems in the installation.

Why choose this Bosch alternator for BMW

• Original OEM Bosch design matched to N52 engines in BMW E60, E61, E87, E90, E91 models.
• 155A output ensuring stable charging with a large number of electrical consumers.
• Designed for petrol units, in accordance with the manufacturer's factory specifications.
• Better compatibility with the vehicle's electrical system than many aftermarket replacements.
• Reasonable repair cost while maintaining the high quality of an original component.

Expanding the BMW charging system

If you are planning a comprehensive repair or upgrade of the engine area in your BMW and need other components from the same group, such as pulleys, belt tensioners, or additional power modules, check the available parts in the BMW alternators and generators category.

If you are considering a wider range of work on the vehicle and want to better understand when it is worth choosing dismantled parts instead of new replacements, the guide article on choosing used parts versus replacements for post-accident repairs may be helpful, as it discusses the practical aspects of part selection in the context of costs and durability.