Alternator Generator Mercedes R171 W209 M272 Petrol Engine 150A A2721540002

Alternator Generator Mercedes R171 W209 M272 Petrol Engine 150A is an original charging system component designed for petrol engines, specifically engineered for Mercedes vehicles. The 150A alternator ensures a stable power supply for the electrical system and proper battery charging under typical operating conditions for vehicles equipped with the M272 engine.

Specifications and technical data

• SKU: A2721540002
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A2721540002
• Substitutable numbers: A2721540002, A 272 154 00 02
• Fuel type: Petrol
• Category: Alternators & Generators

Purpose and operating parameters

The presented alternator belongs to the Alternators and generators category and is structurally adapted to work with the M272 petrol engine used in the W209 body style. The 150A current output allows for the safe operation of standard electrical consumers as well as additional equipment, such as advanced multimedia systems or comfort features.

Selecting an alternator compatible with a petrol engine reduces the risk of overloads, overheating, and unstable voltage in the system, which translates into a longer service life for other electrical components of the vehicle.

Design and user benefits

The alternator was designed as an OEM component for Mercedes vehicles, which means it maintains factory mounting points, the correct pulley profile, and the proper charging characteristics. As a result, installation is predictable, and integration with the factory wiring harness proceeds without the need for any modifications.

Key benefits of using this model include:

• consistency with the vehicle's factory energy management system,
• appropriately selected current output for the petrol engine,
• maintenance of charging parameters in accordance with the vehicle manufacturer's specifications.

Condition and service application

The offered alternator is a used component, making it an attractive service solution for repairing or replacing a damaged charging system in a Mercedes vehicle with an M272 engine. This type of component is particularly useful for optimizing repair costs while maintaining compliance with factory specifications.

Replacing the alternator with a model from the same design group allows for restoring proper battery charging, eliminating voltage-related error messages, and stabilizing the operation of electrical consumers in the vehicle.

Alternator selection and technical support

When selecting an alternator for a specific Mercedes model with a petrol engine, it is worth paying attention to compatibility with the engine, system parameters, and the vehicle's electrical equipment. Verification by OEM number or the vehicle's VIN helps reduce the risk of purchasing an incompatible part and speeds up the service process.

If you are planning a comprehensive repair or upgrade of the charging system area in your Mercedes and need other components from the same group, such as alternators with different outputs, auxiliary generators, or compatible mounting hardware, check the available parts in the Mercedes alternators and generators category.

Additional information on selecting original components by OEM or VIN number, as well as practical tips on operating petrol engines and their accessories, can be found in the article: The five-cylinder Audi engine – a legend from Quattro to RS3 and how to maintain it using original Audi parts.