Valeo 439678 Alternator

Reliable Alternator for Mercedes-Benz C250 and SLK250

The Valeo Alternator 439678 is designed to provide consistent electrical charging performance for select Mercedes-Benz models. Engineered with a 12-volt system and internal fan type, this alternator supports the electrical demands of your vehicle efficiently.

• Voltage: 12V for standard automotive electrical systems
• Internal fan type for effective cooling
• Clockwise rotation direction
• 6-groove pulley compatible with serpentine belts
• Durable aluminium housing for heat dissipation and strength
• Internal regulator type for stable voltage output
• Amperage rating of 120A to meet vehicle power requirements
• Technical number Tg12c063 for precise identification

Valeo Alternator Product Line Overview

The Valeo Alternator product line focuses on original equipment (OE) quality components designed to meet or exceed manufacturer specifications. This alternator belongs to the Valeo OE family, ensuring compatibility and reliable performance for Mercedes-Benz vehicles such as the C250 and SLK250. The line emphasizes durable materials and integrated features like internal regulators and fans to maintain optimal operation under various driving conditions.

Detailed Product Description

This Valeo alternator, part number 439678, is engineered specifically for Mercedes-Benz C250 and SLK250 models. It features a 12-volt electrical system with an internal fan that helps maintain proper operating temperatures. The clockwise rotation direction and 6-groove pulley design are compatible with serpentine belt systems commonly found in these vehicles. Constructed with an aluminium housing, the alternator offers enhanced durability and heat dissipation. The internal voltage regulator ensures consistent amperage output rated at 120 amps, supporting the vehicle’s electrical components effectively.

Common Applications and Issues Addressed

• Replacement for failing or underperforming alternators in Mercedes-Benz C250 and SLK250
• Resolves battery charging problems and electrical system malfunctions
• Addresses issues with dimming headlights or electrical accessory failures
• Fixes irregular voltage output causing dashboard warning lights
• Prevents vehicle stalling due to insufficient electrical power

Installation Notes and Tips

When installing the Valeo alternator 439678, ensure the serpentine belt is properly aligned with the 6-groove pulley. Verify the clockwise rotation direction matches the vehicle’s original setup. It is recommended to inspect the battery and electrical connections for corrosion or damage before installation. Use appropriate torque specifications for mounting bolts and confirm the internal regulator is functioning correctly after installation.

Quality Assurance and Warranty

Valeo alternators are manufactured to meet OE standards, providing reliable performance and durability. This alternator is part of the Valeo OE family, ensuring it meets the quality requirements for Mercedes-Benz vehicles. While specific warranty details are not provided here, Valeo products typically come with manufacturer-backed warranties covering defects in materials and workmanship.