BMW X5 E53 4.4i 4.6is M62 Water Cooled Alternator Generator 150A

BMW X5 E53 4.4i 4.6is M62 Water Cooled Alternator Generator 150A is an original component from the Alternators and generators group, designed for M62 power units in the BMW X5 E53 model in 4.4i and 4.6is versions. This used OEM component ensures proper charging of the electrical system, stable operation of engine accessories, and correct compatibility with the vehicle's factory electronics.

Specifications and technical data

• SKU: 7508054
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 7508054
• Substitutable numbers: 12317508054, 7508054, 12317508052, 7508052, EM
• Category: Other Engine Parts

Purpose and compatibility

The presented alternator has been designed specifically for M62 petrol engines installed in the BMW X5 E53 in 4.4i and 4.6is versions. Thanks to the OEM design, factory mounting points, correct positioning relative to engine accessories, and proper cooperation with the drive belt and charging control system are maintained.

The component belongs to the Alternators and generators group, which means it is responsible for converting mechanical energy from the crankshaft into electrical energy, powering the vehicle's electrical system and the battery while the engine is running.

Construction and functional parameters

The alternator uses a classic design with an excitation rotor and a three-phase stator, an integrated voltage regulator, and a rectifier bridge. This solution ensures stable voltage in the system, reduces fluctuations at varying engine speeds, and enables safe operation under high electrical load conditions.

• designed to work with the factory BMW engine management system,
• adapted to the loads typical for highly equipped X5 E53 versions,
• adapted for operation in an engine compartment with increased temperature and humidity.

By maintaining the original specification, the alternator maintains the proper battery charging level, which translates into reliable starting, stable operation of lighting, comfort systems, and onboard electronics.

Benefits of using an original BMW alternator

Using an original alternator dedicated to the BMW X5 E53 with an M62 engine allows you to avoid problems typical of aftermarket replacements with uncertain specifications. Key advantages include:

• factory fitment to brackets, pulleys, and the electrical harness,
• proper cooperation with the vehicle's energy management system,
• maintenance of charging parameters specified by the manufacturer,
• reduction of the risk of battery overcharging or undercharging.

The used OEM component is a good choice for repairs where compliance with the factory design and predictable behavior during long-term operation are important.

Condition and service application

The alternator is offered in used condition, which makes it a reasonable solution for an economical repair of the charging system in a BMW X5 E53 4.4i or 4.6is. It works well both as a replacement for a damaged unit and as a component used preventively during major service work on the M62 engine.

Thanks to the preservation of the original design, installation proceeds in a manner similar to the factory process – without the need for system modifications or additional adapters, which shortens work time and facilitates verification of correct operation after replacement.

BMW Alternators and generators – expanding the 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 additional alternators, generators, or compatible accessory parts, check out the available parts in the BMW Alternators and generators category.

More about using used components

If you want to better understand how to effectively use used engine accessory components to improve the performance and operating characteristics of the power unit, it is worth checking out practical guide materials. An extended discussion of this topic can be found in the article How to increase engine power: a practical guide to engine tuning with used parts, which will help you plan further modifications to your car.