Valeo 443277 Alternator

Alternator Overview

Valeo alternator 443277 is a 100% new charging component built for direct replacement applications. It is engineered with a 14-volt output, internal fan, internal regulator, and clockwise rotation for consistent electrical performance.

Compatible with Mercedes-Benz C300 and Mercedes-Benz GLK350 applications, this Valeo alternator 443277 supports dependable charging system operation in vehicles that require a 150-amp unit. The aluminium housing helps keep the assembly lightweight while maintaining a durable structure for everyday use.

Key Features

• 14-volt alternator with 150-amp output
• Internal fan and internal regulator design
• Clockwise rotation
• Aluminium housing construction
• 100% new unit, not remanufactured
• Technical number TG15C278

Detailed Description

Valeo 443277 is part of the brand’s Alternator line and reflects Valeo’s long history in electrical systems and original equipment supply. The design focuses on stable charging output and reduced voltage drop, which supports reliable battery replenishment and steady electrical system performance. For buyers searching for a Mercedes-Benz C300 alternator or Mercedes-Benz GLK350 alternator, this unit provides the specifications needed for the listed applications.

This part cross-references Bosch AL0191X and AL9453X for the same application.

What It Helps Solve

• Low charging output from a worn alternator
• Battery warning light caused by charging system faults
• Electrical instability from inconsistent voltage delivery
• Starting issues related to insufficient battery recharge
• Alternator noise or failure in the charging system

Installation Notes and Tips

Verify the vehicle’s chassis or VIN note for 2010-2012 Mercedes-Benz C300 applications before ordering. Confirm the alternator’s voltage, amperage, rotation direction, and regulator type against the original unit to ensure proper match. Use the listed technical number TG15C278 when comparing specifications.

Quality Assurance

Valeo is a global original equipment supplier in electrical systems, and this alternator is manufactured as a new unit to reduce the risk associated with reused internal components.