Alternator Mercedes W164 OM272 Engine Alternator 180A 14V Valeo A0141540402

Mercedes W164 OM272 Engine Alternator 180A 14V Valeo A0141540402 is an original part from the Alternator and Generator Parts group, designed for the charging system in Mercedes vehicles with the OM272 engine. The used Valeo alternator ensures stable 14V system power supply and an adequate 180A current reserve, which is crucial for the proper operation of the vehicle's electronics and engine accessories.

Specifications and technical data

• SKU: A0141540402
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A0141540402
• Substitutable numbers: A0141540402, A 014 154 04 02
• Category: Alternator & Generator Parts

Purpose and Function in the Charging System

The engine alternator in Mercedes models with the OM272 engine is responsible for converting mechanical energy from the crankshaft into electrical energy, powering all consumers and maintaining the correct battery charge level. The 180A, 14V version is adapted for vehicles equipped with extensive onboard electronics, numerous control units, and additional current consumers.

Thanks to the Valeo design, the alternator operates in an optimized manner for the OM272 engine's characteristics, resulting in stable voltage across the entire RPM range and proper cooperation with the factory regulator and vehicle's electrical system.

Benefits of Using an Original Mercedes Alternator

Choosing an alternator from the Alternator and Generator Parts group dedicated to the Mercedes W164 with the OM272 engine allows for maintaining the original charging system parameters. The original design ensures:

• correct fitment to engine mounts and accessories,
• compatibility with factory wiring and electrical connectors,
• stable current-voltage characteristics in the 14V system,
• adequate current reserve for additional consumers.

A used OEM part is a cost-effective solution that is also technically consistent with the vehicle's original design, reducing the risk of compatibility issues or control unit errors.

Condition, Verification, and Practical Application

The alternator is offered as a used part, which means it comes from a dismantled vehicle and has been verified for its suitability for further use. This type of component is particularly attractive for workshops and informed users looking for reliable solutions for charging system repairs without the need to invest in a new part.

Before installation, standard servicing procedures are recommended: checking the condition of the drive belt, tensioner pulleys, and the correctness of ground and power connections. A properly installed Valeo alternator in the OM272 system allows for restoring stable charging and eliminating typical fault symptoms such as voltage drops, charging error messages, or starting problems.

Matching by OEM and Purchase Support

Precise alternator matching to a specific Mercedes version is possible through identification by OEM number and the availability of interchangeable numbers in the technical specification. This allows for verifying compatibility with the specific vehicle configuration, which is particularly important for differences in electrical equipment or production years.

If you want to streamline the process of selecting used electrical components and generators, it's worth using the practical tips contained in the Global Parts guide – it describes in detail selection by VIN and OEM, as well as secure online purchases: Secure online purchase of used car parts – step-by-step guide.

Expanding the Charging System in a Mercedes

If you are planning a comprehensive repair or modernization of the engine area in your Mercedes and need other parts from the same group, such as alternator housings, pulleys, or mounting brackets, check the available parts in the Mercedes Alternator and Generator Parts category.